treewide: Per RFC45, remove all unquoted URLs

author: Michael Reilly <OmnipotentEntity@gmail.com> 2020-03-31 21:11:51 -0400
committer: Jörg Thalheim <joerg@thalheim.io> 2020-04-10 17:54:53 +0100
commit: 84cf00f98031e93f389f1eb93c4a7374a33cc0a9 (patch)
tree: 203c51a8740cb4893b8cfc4426d4cd49a97430e0 /pkgs/applications/audio
parent: bf5eb87033cc6a5de5cc48da544c17a4dedc790b (diff)
download: nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar
nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.gz
nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.bz2
nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.lz
nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.xz
nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.zst
nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.zip
283 files changed, 300 insertions, 300 deletions
diff --git a/pkgs/applications/audio/AMB-plugins/default.nix b/pkgs/applications/audio/AMB-plugins/default.nix
index d9a05e0bf66..2e2af8f3a9a 100644
--- a/pkgs/applications/audio/AMB-plugins/default.nix
+++ b/pkgs/applications/audio/AMB-plugins/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       Mono and stereo to B-format panning, horizontal rotator, square, hexagon and cube decoders.
     '';
     version = version;
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/FIL-plugins/default.nix b/pkgs/applications/audio/FIL-plugins/default.nix
index cf383c1dd49..253e724cd31 100644
--- a/pkgs/applications/audio/FIL-plugins/default.nix
+++ b/pkgs/applications/audio/FIL-plugins/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
       This should make this plugin a good candidate for use in systems that allow automation of plugin control ports, such as Ardour, or for stage use.
     '';
     version = version;
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/ladspa/index.html";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/a2jmidid/default.nix b/pkgs/applications/audio/a2jmidid/default.nix
index 28331720048..64468bddc85 100644
--- a/pkgs/applications/audio/a2jmidid/default.nix
+++ b/pkgs/applications/audio/a2jmidid/default.nix
@@ -18,11 +18,11 @@ in stdenv.mkDerivation {
 
   patches = [
     (fetchpatch {
-      url = https://repo.or.cz/a2jmidid.git/patch/24e3b8e543256ae8fdfb4b75eb9fd775f07c46e2;
+      url = "https://repo.or.cz/a2jmidid.git/patch/24e3b8e543256ae8fdfb4b75eb9fd775f07c46e2";
       sha256 = "1nxrvnhxlgqc9wbxnp1gnpw4wjyzxvymwcg1gh2nqzmssgfykfkc";
     })
     (fetchpatch {
-      url = https://repo.or.cz/a2jmidid.git/patch/7f82da7eb2f540a94db23331be98d42a58ddc269;
+      url = "https://repo.or.cz/a2jmidid.git/patch/7f82da7eb2f540a94db23331be98d42a58ddc269";
       sha256 = "1nab9zf0agbcj5pvhl90pz0cx1d204d4janqflc5ymjhy8jyrsdv";
     })
   ];
diff --git a/pkgs/applications/audio/aacgain/default.nix b/pkgs/applications/audio/aacgain/default.nix
index 5892351225d..194514c65b5 100644
--- a/pkgs/applications/audio/aacgain/default.nix
+++ b/pkgs/applications/audio/aacgain/default.nix
@@ -55,7 +55,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "ReplayGain for AAC files";
-    homepage = https://aacgain.altosdesign.com;
+    homepage = "https://aacgain.altosdesign.com";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.robbinch ];
diff --git a/pkgs/applications/audio/abcde/default.nix b/pkgs/applications/audio/abcde/default.nix
index adb38d4bbba..4cb28e512a7 100644
--- a/pkgs/applications/audio/abcde/default.nix
+++ b/pkgs/applications/audio/abcde/default.nix
@@ -46,7 +46,7 @@ in
     '';
 
     meta = with stdenv.lib; {
-      homepage = http://abcde.einval.com/wiki/;
+      homepage = "http://abcde.einval.com/wiki/";
       license = licenses.gpl2Plus;
       maintainers = with maintainers; [ gebner ];
       description = "Command-line audio CD ripper";
diff --git a/pkgs/applications/audio/airwave/default.nix b/pkgs/applications/audio/airwave/default.nix
index 1d91ad4d2be..176d1d4cfb3 100644
--- a/pkgs/applications/audio/airwave/default.nix
+++ b/pkgs/applications/audio/airwave/default.nix
@@ -83,7 +83,7 @@ multiStdenv.mkDerivation {
       protocol to correctly embed the plugin editor into the host
       window.
     '';
-    homepage = https://github.com/phantom-code/airwave;
+    homepage = "https://github.com/phantom-code/airwave";
     license = licenses.mit;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ michalrus ];
diff --git a/pkgs/applications/audio/aj-snapshot/default.nix b/pkgs/applications/audio/aj-snapshot/default.nix
index 5c379b57ad6..f781aad905d 100644
--- a/pkgs/applications/audio/aj-snapshot/default.nix
+++ b/pkgs/applications/audio/aj-snapshot/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
     You can also run aj-snapshot in daemon mode if you want to have your connections continually restored.
     '';
 
-    homepage = http://aj-snapshot.sourceforge.net/;
+    homepage = "http://aj-snapshot.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = [ maintainers.mrVanDalo ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/amarok/default.nix b/pkgs/applications/audio/amarok/default.nix
index cd951701e77..25fceb357cc 100644
--- a/pkgs/applications/audio/amarok/default.nix
+++ b/pkgs/applications/audio/amarok/default.nix
@@ -14,7 +14,7 @@ mkDerivation rec {
     # master has the Qt5 version as of April 2018 but a formal release has not
     # yet been made so change this back to the proper upstream when such a
     # release is out
-    url    = git://anongit.kde.org/amarok.git;
+    url    = "git://anongit.kde.org/amarok.git";
     # url = "mirror://kde/stable/${pname}/${version}/src/${name}.tar.xz";
     rev    = "457fbda25a85a102bfda92aa7137e7ef5e4c8b00";
     sha256 = "1ig2mg8pqany6m2zplkrvldcv4ibxwsypnyv5igm7nz7ax82cd5j";
diff --git a/pkgs/applications/audio/ardour/default.nix b/pkgs/applications/audio/ardour/default.nix
index c1749029cdc..8c55c29b527 100644
--- a/pkgs/applications/audio/ardour/default.nix
+++ b/pkgs/applications/audio/ardour/default.nix
@@ -83,7 +83,7 @@ stdenv.mkDerivation rec {
       Please consider supporting the ardour project financially:
       https://community.ardour.org/node/8288
     '';
-    homepage = http://ardour.org/;
+    homepage = "http://ardour.org/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu maintainers.fps ];
diff --git a/pkgs/applications/audio/ario/default.nix b/pkgs/applications/audio/ario/default.nix
index 4b48f5f1eea..99a09e7ee33 100644
--- a/pkgs/applications/audio/ario/default.nix
+++ b/pkgs/applications/audio/ario/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "GTK client for MPD (Music player daemon)";
-    homepage = http://ario-player.sourceforge.net/;
+    homepage = "http://ario-player.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.garrison ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/audio/artyFX/default.nix b/pkgs/applications/audio/artyFX/default.nix
index 4b76ebdf605..0265e0f75ec 100644
--- a/pkgs/applications/audio/artyFX/default.nix
+++ b/pkgs/applications/audio/artyFX/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cairomm cmake libjack2 libpthreadstubs libXdmcp libxshmfence libsndfile lv2 ntk   ];
 
   meta = with stdenv.lib; {
-    homepage = http://openavproductions.com/artyfx/;
+    homepage = "http://openavproductions.com/artyfx/";
     description = "A LV2 plugin bundle of artistic realtime effects";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/asunder/default.nix b/pkgs/applications/audio/asunder/default.nix
index 5a0b6797a24..7d90ac36f36 100644
--- a/pkgs/applications/audio/asunder/default.nix
+++ b/pkgs/applications/audio/asunder/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A graphical Audio CD ripper and encoder for Linux";
-    homepage = http://littlesvr.ca/asunder/index.php;
+    homepage = "http://littlesvr.ca/asunder/index.php";
     license = licenses.gpl2;
     maintainers = with maintainers; [ mudri ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/audacious/default.nix b/pkgs/applications/audio/audacious/default.nix
index 12e8237d485..b06175f37f3 100644
--- a/pkgs/applications/audio/audacious/default.nix
+++ b/pkgs/applications/audio/audacious/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Audio player";
-    homepage = https://audacious-media-player.org/;
+    homepage = "https://audacious-media-player.org/";
     maintainers = with maintainers; [ eelco ramkromberg ];
     platforms = with platforms; linux;
     license = with licenses; [
diff --git a/pkgs/applications/audio/audacious/qt-5.nix b/pkgs/applications/audio/audacious/qt-5.nix
index baf7b108e50..45525571a64 100644
--- a/pkgs/applications/audio/audacious/qt-5.nix
+++ b/pkgs/applications/audio/audacious/qt-5.nix
@@ -81,7 +81,7 @@ mkDerivation {
 
   meta = with lib; {
     description = "Audio player";
-    homepage = https://audacious-media-player.org/;
+    homepage = "https://audacious-media-player.org/";
     maintainers = with maintainers; [ ttuegel ];
     platforms = with platforms; linux;
     license = with licenses; [
diff --git a/pkgs/applications/audio/audacity/default.nix b/pkgs/applications/audio/audacity/default.nix
index 57e0c52e640..a1f4b9ad950 100644
--- a/pkgs/applications/audio/audacity/default.nix
+++ b/pkgs/applications/audio/audacity/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Sound editor with graphical UI";
-    homepage = http://audacityteam.org/;
+    homepage = "http://audacityteam.org/";
     license = licenses.gpl2Plus;
     platforms = intersectLists platforms.linux platforms.x86; # fails on ARM
     maintainers = with maintainers; [ the-kenny ];
diff --git a/pkgs/applications/audio/audio-recorder/default.nix b/pkgs/applications/audio/audio-recorder/default.nix
index 534b87e9fa7..eee293b76c2 100644
--- a/pkgs/applications/audio/audio-recorder/default.nix
+++ b/pkgs/applications/audio/audio-recorder/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
       automatically record your Skype calls. It supports several audio (output)
       formats such as OGG audio, Flac, MP3 and WAV.
     '';
-    homepage = https://launchpad.net/~audio-recorder;
+    homepage = "https://launchpad.net/~audio-recorder";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.msteen ];
diff --git a/pkgs/applications/audio/aumix/default.nix b/pkgs/applications/audio/aumix/default.nix
index db5f081c4ed..5bc7f843258 100644
--- a/pkgs/applications/audio/aumix/default.nix
+++ b/pkgs/applications/audio/aumix/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
       Aumix adjusts an audio mixer from X, the console, a terminal,
       the command line or a script.
     '';
-    homepage = http://www.jpj.net/~trevor/aumix.html;
+    homepage = "http://www.jpj.net/~trevor/aumix.html";
     license = stdenv.lib.licenses.gpl2Plus;
 
     maintainers = [ ];
diff --git a/pkgs/applications/audio/axoloti/default.nix b/pkgs/applications/audio/axoloti/default.nix
index fb9b3c9513f..3d907e421b3 100644
--- a/pkgs/applications/audio/axoloti/default.nix
+++ b/pkgs/applications/audio/axoloti/default.nix
@@ -88,7 +88,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.axoloti.com;
+    homepage = "http://www.axoloti.com";
     description = ''
       Sketching embedded digital audio algorithms.
 
diff --git a/pkgs/applications/audio/axoloti/dfu-util.nix b/pkgs/applications/audio/axoloti/dfu-util.nix
index e9fa6daecfe..80ec696c645 100644
--- a/pkgs/applications/audio/axoloti/dfu-util.nix
+++ b/pkgs/applications/audio/axoloti/dfu-util.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
       phones. With dfu-util you are able to download firmware to your device or
       upload firmware from it.
     '';
-    homepage = http://dfu-util.sourceforge.net;
+    homepage = "http://dfu-util.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.unix;
     maintainers = [ ];
diff --git a/pkgs/applications/audio/axoloti/libusb1.nix b/pkgs/applications/audio/axoloti/libusb1.nix
index 1a6ebd346cc..49b788f6653 100644
--- a/pkgs/applications/audio/axoloti/libusb1.nix
+++ b/pkgs/applications/audio/axoloti/libusb1.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.libusb.info;
+    homepage = "http://www.libusb.info";
     description = "User-space USB library";
     platforms = platforms.unix;
     license = licenses.lgpl21;
diff --git a/pkgs/applications/audio/baudline/default.nix b/pkgs/applications/audio/baudline/default.nix
index c35df95b24c..0d95675d1e6 100644
--- a/pkgs/applications/audio/baudline/default.nix
+++ b/pkgs/applications/audio/baudline/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
       displays, and continuous capture tools for hunting down and studying
       elusive signal characteristics.
     '';
-    homepage = http://www.baudline.com/;
+    homepage = "http://www.baudline.com/";
     # See http://www.baudline.com/faq.html#licensing_terms.
     # (Do NOT (re)distribute on hydra.)
     license = licenses.unfree;
diff --git a/pkgs/applications/audio/bitmeter/default.nix b/pkgs/applications/audio/bitmeter/default.nix
index 6f471f3a028..ac05a9367cc 100644
--- a/pkgs/applications/audio/bitmeter/default.nix
+++ b/pkgs/applications/audio/bitmeter/default.nix
@@ -14,13 +14,13 @@ stdenv.mkDerivation rec {
 
   patches = [
     (fetchurl {
-      url = https://gitweb.gentoo.org/repo/gentoo.git/plain/media-sound/bitmeter/files/bitmeter-1.2-fix-build-system.patch;
+      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/media-sound/bitmeter/files/bitmeter-1.2-fix-build-system.patch";
       sha256 = "021mz6933iw7mpk6b9cbjr8naj6smbq1hwqjszlyx72qbwrrid7k";
     })
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://devel.tlrmx.org/audio/bitmeter/;
+    homepage = "http://devel.tlrmx.org/audio/bitmeter/";
     description = "Also known as jack bitscope. Useful to detect denormals";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix b/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix
index 83586847190..910c1cfe51b 100644
--- a/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix
+++ b/pkgs/applications/audio/bitwig-studio/bitwig-studio1.nix
@@ -90,7 +90,7 @@ stdenv.mkDerivation rec {
       production, performance and DJing, with a focus on flexible
       editing tools and a super-fast workflow.
     '';
-    homepage = https://www.bitwig.com/;
+    homepage = "https://www.bitwig.com/";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ michalrus mrVanDalo ];
diff --git a/pkgs/applications/audio/bristol/default.nix b/pkgs/applications/audio/bristol/default.nix
index 504900d6595..704b888e229 100644
--- a/pkgs/applications/audio/bristol/default.nix
+++ b/pkgs/applications/audio/bristol/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "A range of synthesiser, electric piano and organ emulations";
-    homepage = http://bristol.sourceforge.net;
+    homepage = "http://bristol.sourceforge.net";
     license = licenses.gpl3;
     platforms = ["x86_64-linux" "i686-linux"];
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/bs1770gain/default.nix b/pkgs/applications/audio/bs1770gain/default.nix
index 2dee463aeee..76a78935619 100644
--- a/pkgs/applications/audio/bs1770gain/default.nix
+++ b/pkgs/applications/audio/bs1770gain/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     description = "A audio/video loudness scanner implementing ITU-R BS.1770";
     license = licenses.gpl2Plus;
-    homepage = http://bs1770gain.sourceforge.net/;
+    homepage = "http://bs1770gain.sourceforge.net/";
     platforms = platforms.all;
   };
 }
diff --git a/pkgs/applications/audio/bsequencer/default.nix b/pkgs/applications/audio/bsequencer/default.nix
index b91554f5716..e63124e8547 100644
--- a/pkgs/applications/audio/bsequencer/default.nix
+++ b/pkgs/applications/audio/bsequencer/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sjaehn/BSEQuencer;
+    homepage = "https://github.com/sjaehn/BSEQuencer";
     description = "Multi channel MIDI step sequencer LV2 plugin";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/bshapr/default.nix b/pkgs/applications/audio/bshapr/default.nix
index d2206cf93b5..a2f96bc288c 100644
--- a/pkgs/applications/audio/bshapr/default.nix
+++ b/pkgs/applications/audio/bshapr/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sjaehn/BShapr;
+    homepage = "https://github.com/sjaehn/BShapr";
     description = "Beat / envelope shaper LV2 plugin";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/bslizr/default.nix b/pkgs/applications/audio/bslizr/default.nix
index 97a9d60ec27..d97381a7a06 100644
--- a/pkgs/applications/audio/bslizr/default.nix
+++ b/pkgs/applications/audio/bslizr/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/sjaehn/BSlizr;
+    homepage = "https://github.com/sjaehn/BSlizr";
     description = "Sequenced audio slicing effect LV2 plugin (step sequencer effect)";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/cadence/default.nix b/pkgs/applications/audio/cadence/default.nix
index 7aa2872224d..4f4ad4b8c5b 100644
--- a/pkgs/applications/audio/cadence/default.nix
+++ b/pkgs/applications/audio/cadence/default.nix
@@ -91,7 +91,7 @@ mkDerivation rec {
   '') scriptAndSource;
 
   meta = {
-    homepage = https://github.com/falkTX/Cadence/;
+    homepage = "https://github.com/falkTX/Cadence/";
     description = "Collection of tools useful for audio production";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ genesis worldofpeace ];
diff --git a/pkgs/applications/audio/calf/default.nix b/pkgs/applications/audio/calf/default.nix
index 0106e8b4584..bbeef4c395a 100644
--- a/pkgs/applications/audio/calf/default.nix
+++ b/pkgs/applications/audio/calf/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://calf-studio-gear.org;
+    homepage = "http://calf-studio-gear.org";
     description = "A set of high quality open source audio plugins for musicians";
     license = licenses.lgpl2;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/caps/default.nix b/pkgs/applications/audio/caps/default.nix
index eabbf866837..dc8511bf500 100644
--- a/pkgs/applications/audio/caps/default.nix
+++ b/pkgs/applications/audio/caps/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       considerations are latency-free realtime operation, modesty of
       resource demands and meaningful control interfaces.
     '';
-    homepage = http://www.quitte.de/dsp/caps.html;
+    homepage = "http://www.quitte.de/dsp/caps.html";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.astsmtl ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/carla/default.nix b/pkgs/applications/audio/carla/default.nix
index 6641e99e491..2b794b98f88 100644
--- a/pkgs/applications/audio/carla/default.nix
+++ b/pkgs/applications/audio/carla/default.nix
@@ -68,7 +68,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://kxstudio.sf.net/carla;
+    homepage = "http://kxstudio.sf.net/carla";
     description = "An audio plugin host";
     longDescription = ''
       It currently supports LADSPA (including LRDF), DSSI, LV2, VST2/3
diff --git a/pkgs/applications/audio/caudec/default.nix b/pkgs/applications/audio/caudec/default.nix
index 1ab39311258..c9539095863 100644
--- a/pkgs/applications/audio/caudec/default.nix
+++ b/pkgs/applications/audio/caudec/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
   '';
 
    meta = with stdenv.lib; {
-    homepage = http://caudec.net/;
+    homepage = "http://caudec.net/";
     description = "A multiprocess audio converter that supports many formats (FLAC, MP3, Ogg Vorbis, Windows codecs and many more)";
     license     = licenses.gpl3;
     platforms   = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/audio/cava/default.nix b/pkgs/applications/audio/cava/default.nix
index 5c5c262056e..2bdca386bf4 100644
--- a/pkgs/applications/audio/cava/default.nix
+++ b/pkgs/applications/audio/cava/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Console-based Audio Visualizer for Alsa";
-    homepage = https://github.com/karlstav/cava;
+    homepage = "https://github.com/karlstav/cava";
     license = licenses.mit;
     maintainers = with maintainers; [ offline mirrexagon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/cd-discid/default.nix b/pkgs/applications/audio/cd-discid/default.nix
index 864e04d88f3..2ceb5f6d09a 100644
--- a/pkgs/applications/audio/cd-discid/default.nix
+++ b/pkgs/applications/audio/cd-discid/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional stdenv.isDarwin IOKit;
 
   meta = with stdenv.lib; {
-    homepage = http://linukz.org/cd-discid.shtml;
+    homepage = "http://linukz.org/cd-discid.shtml";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.rycee ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/cdparanoia/default.nix b/pkgs/applications/audio/cdparanoia/default.nix
index 4e517ee636e..0658305723c 100644
--- a/pkgs/applications/audio/cdparanoia/default.nix
+++ b/pkgs/applications/audio/cdparanoia/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://xiph.org/paranoia;
+    homepage = "https://xiph.org/paranoia";
     description = "A tool and library for reading digital audio from CDs";
     license = with licenses; [ gpl2Plus lgpl21Plus ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/chuck/default.nix b/pkgs/applications/audio/chuck/default.nix
index 04b31ae2c0b..6970296cbd9 100644
--- a/pkgs/applications/audio/chuck/default.nix
+++ b/pkgs/applications/audio/chuck/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Programming language for real-time sound synthesis and music creation";
-    homepage = http://chuck.cs.princeton.edu;
+    homepage = "http://chuck.cs.princeton.edu";
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = with maintainers; [ ftrvxmtrx ];
diff --git a/pkgs/applications/audio/clementine/default.nix b/pkgs/applications/audio/clementine/default.nix
index 479f2a16fd8..4a32b099d15 100644
--- a/pkgs/applications/audio/clementine/default.nix
+++ b/pkgs/applications/audio/clementine/default.nix
@@ -91,7 +91,7 @@ let
     '';
 
     meta = with stdenv.lib; {
-      homepage = http://www.clementine-player.org;
+      homepage = "http://www.clementine-player.org";
       description = "A multiplatform music player";
       license = licenses.gpl3Plus;
       platforms = platforms.linux;
@@ -130,7 +130,7 @@ let
     '';
     enableParallelBuilding = true;
     meta = with stdenv.lib; {
-      homepage = http://www.clementine-player.org;
+      homepage = "http://www.clementine-player.org";
       description = "Spotify integration for Clementine";
       # The blob itself is Apache-licensed, although libspotify is unfree.
       license = licenses.asl20;
diff --git a/pkgs/applications/audio/clerk/default.nix b/pkgs/applications/audio/clerk/default.nix
index 4da2228c6c1..3c78295db67 100644
--- a/pkgs/applications/audio/clerk/default.nix
+++ b/pkgs/applications/audio/clerk/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An MPD client built on top of rofi";
-    homepage    = https://github.com/carnager/clerk;
+    homepage    = "https://github.com/carnager/clerk";
     license     = licenses.mit;
     maintainers = with maintainers; [ anderspapitto ];
   };
diff --git a/pkgs/applications/audio/cmus/default.nix b/pkgs/applications/audio/cmus/default.nix
index 023e35bd787..3e5916ba098 100644
--- a/pkgs/applications/audio/cmus/default.nix
+++ b/pkgs/applications/audio/cmus/default.nix
@@ -128,7 +128,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Small, fast and powerful console music player for Linux and *BSD";
-    homepage = https://cmus.github.io/;
+    homepage = "https://cmus.github.io/";
     license = licenses.gpl2;
     maintainers = [ maintainers.oxij ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/audio/cmusfm/default.nix b/pkgs/applications/audio/cmusfm/default.nix
index 54f1050da46..6695b9a7237 100644
--- a/pkgs/applications/audio/cmusfm/default.nix
+++ b/pkgs/applications/audio/cmusfm/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
       + run `cmusfm init` to generate configuration file under ~/.config/cmus/cmusfm.conf
       + Inside cmus run `:set status_display_program=cmusfm` to set up cmusfm
     '';
-    homepage = https://github.com/Arkq/cmusfm/;
+    homepage = "https://github.com/Arkq/cmusfm/";
     maintainers = with stdenv.lib.maintainers; [ CharlesHD ];
     license = licenses.gpl3Plus;
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/applications/audio/cozy-audiobooks/default.nix b/pkgs/applications/audio/cozy-audiobooks/default.nix
index 865bc130db9..a5947bd37f1 100644
--- a/pkgs/applications/audio/cozy-audiobooks/default.nix
+++ b/pkgs/applications/audio/cozy-audiobooks/default.nix
@@ -75,7 +75,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A modern audio book player for Linux using GTK 3";
-    homepage = https://cozy.geigi.de/;
+    homepage = "https://cozy.geigi.de/";
     maintainers = [ maintainers.makefu ];
     license = licenses.gpl3;
   };
diff --git a/pkgs/applications/audio/crip/default.nix b/pkgs/applications/audio/crip/default.nix
index f7bf919c221..0181ede26dd 100644
--- a/pkgs/applications/audio/crip/default.nix
+++ b/pkgs/applications/audio/crip/default.nix
@@ -58,7 +58,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://bach.dynet.com/crip/;
+    homepage = "http://bach.dynet.com/crip/";
     description = "Terminal-based ripper/encoder/tagger tool for creating Ogg Vorbis/FLAC files";
     license = stdenv.lib.licenses.gpl1;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/csa/default.nix b/pkgs/applications/audio/csa/default.nix
index 0b8afada020..756c21892fb 100644
--- a/pkgs/applications/audio/csa/default.nix
+++ b/pkgs/applications/audio/csa/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   postInstall = "rm $out/lib/ladspa/celllm_3890.*";
 
   meta = with stdenv.lib; {
-    homepage = https://sourceforge.net/projects/csa/;
+    homepage = "https://sourceforge.net/projects/csa/";
     description = "A group of LADSPA Audio plugins for FM broadcast and more";
     longDescription = ''
       CSA means : Contrôle Signal Audio.
diff --git a/pkgs/applications/audio/csound/csound-qt/default.nix b/pkgs/applications/audio/csound/csound-qt/default.nix
index d16d9331821..895609d3c02 100644
--- a/pkgs/applications/audio/csound/csound-qt/default.nix
+++ b/pkgs/applications/audio/csound/csound-qt/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "CsoundQt is a frontend for Csound with editor, integrated help, widgets and other features.";
-    homepage = https://csoundqt.github.io/;
+    homepage = "https://csoundqt.github.io/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ hlolli ];
diff --git a/pkgs/applications/audio/csound/default.nix b/pkgs/applications/audio/csound/default.nix
index 758448c2fb3..4b426609fea 100644
--- a/pkgs/applications/audio/csound/default.nix
+++ b/pkgs/applications/audio/csound/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Sound design, audio synthesis, and signal processing system, providing facilities for music composition and performance on all major operating systems and platforms";
-    homepage = http://www.csounds.com/;
+    homepage = "http://www.csounds.com/";
     license = licenses.gpl2;
     maintainers = [maintainers.marcweber];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix b/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix
index b26360f0c46..337d570a935 100644
--- a/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/headerbar-gtk3.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Plug-in that adds GTK 3 header bar to the DeaDBeeF music player";
-    homepage = https://github.com/saivert/ddb_misc_headerbar_GTK3;
+    homepage = "https://github.com/saivert/ddb_misc_headerbar_GTK3";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.jtojnar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/deadbeef/plugins/infobar.nix b/pkgs/applications/audio/deadbeef/plugins/infobar.nix
index 8a81101983f..294d3a0ad8b 100644
--- a/pkgs/applications/audio/deadbeef/plugins/infobar.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/infobar.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     broken = true; # crashes DeaDBeeF and is abandoned (https://bitbucket.org/dsimbiriatin/deadbeef-infobar/issues/38/infobar-causes-deadbeef-180-to-crash)
     description = "DeaDBeeF Infobar Plugin";
-    homepage = https://bitbucket.org/dsimbiriatin/deadbeef-infobar;
+    homepage = "https://bitbucket.org/dsimbiriatin/deadbeef-infobar";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.jtojnar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/deadbeef/plugins/mpris2.nix b/pkgs/applications/audio/deadbeef/plugins/mpris2.nix
index 5b27f3c3f32..95606a869b7 100644
--- a/pkgs/applications/audio/deadbeef/plugins/mpris2.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/mpris2.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "MPRISv2 plugin for the DeaDBeeF music player";
-    homepage = https://github.com/Serranya/deadbeef-mpris2-plugin/;
+    homepage = "https://github.com/Serranya/deadbeef-mpris2-plugin/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.abbradar ];
diff --git a/pkgs/applications/audio/denemo/default.nix b/pkgs/applications/audio/denemo/default.nix
index f3adec4fece..1438b066061 100644
--- a/pkgs/applications/audio/denemo/default.nix
+++ b/pkgs/applications/audio/denemo/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software used with lilypond";
-    homepage = http://denemo.org;
+    homepage = "http://denemo.org";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.olynch ];
diff --git a/pkgs/applications/audio/dfasma/default.nix b/pkgs/applications/audio/dfasma/default.nix
index 1785ca60060..7965cbd83fd 100644
--- a/pkgs/applications/audio/dfasma/default.nix
+++ b/pkgs/applications/audio/dfasma/default.nix
@@ -59,7 +59,7 @@ in stdenv.mkDerivation rec {
       there are basic functionalities to align the signals in time and
       amplitude, this software does not aim to be an audio editor.
     '';
-    homepage = http://gillesdegottex.github.io/dfasma/;
+    homepage = "http://gillesdegottex.github.io/dfasma/";
     license = [ licenses.gpl3Plus reaperFork.meta.license ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/dirt/default.nix b/pkgs/applications/audio/dirt/default.nix
index 1fcdda40896..5e0cf3616fe 100644
--- a/pkgs/applications/audio/dirt/default.nix
+++ b/pkgs/applications/audio/dirt/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An unimpressive thingie for playing bits of samples with some level of accuracy";
-    homepage = https://github.com/tidalcycles/Dirt;
+    homepage = "https://github.com/tidalcycles/Dirt";
     license = licenses.gpl3;
     maintainers = with maintainers; [ anderspapitto ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/audio/distrho/default.nix b/pkgs/applications/audio/distrho/default.nix
index 36f7dcc5993..0f651f47a48 100644
--- a/pkgs/applications/audio/distrho/default.nix
+++ b/pkgs/applications/audio/distrho/default.nix
@@ -40,7 +40,7 @@ in stdenv.mkDerivation rec {
   makeFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = http://distrho.sourceforge.net;
+    homepage = "http://distrho.sourceforge.net";
     description = "A collection of cross-platform audio effects and plugins";
     longDescription = ''
       Includes:
diff --git a/pkgs/applications/audio/dr14_tmeter/default.nix b/pkgs/applications/audio/dr14_tmeter/default.nix
index ea0ce8cb5f3..fbf25384eef 100644
--- a/pkgs/applications/audio/dr14_tmeter/default.nix
+++ b/pkgs/applications/audio/dr14_tmeter/default.nix
@@ -23,7 +23,7 @@ python3Packages.buildPythonApplication rec {
   meta = with stdenv.lib; {
     description = "Compute the DR14 of a given audio file according to the procedure described by the Pleasurize Music Foundation";
     license = licenses.gpl3Plus;
-    homepage = http://dr14tmeter.sourceforge.net/;
+    homepage = "http://dr14tmeter.sourceforge.net/";
     maintainers = [ maintainers.adisbladis ];
   };
 }
diff --git a/pkgs/applications/audio/dragonfly-reverb/default.nix b/pkgs/applications/audio/dragonfly-reverb/default.nix
index 1ce7115ad85..99c07ba8f5f 100644
--- a/pkgs/applications/audio/dragonfly-reverb/default.nix
+++ b/pkgs/applications/audio/dragonfly-reverb/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/michaelwillis/dragonfly-reverb;
+    homepage = "https://github.com/michaelwillis/dragonfly-reverb";
     description = "A hall-style reverb based on freeverb3 algorithms";
     maintainers = [ maintainers.magnetophon ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/audio/drumgizmo/default.nix b/pkgs/applications/audio/drumgizmo/default.nix
index 2581f223c91..454befd55f9 100644
--- a/pkgs/applications/audio/drumgizmo/default.nix
+++ b/pkgs/applications/audio/drumgizmo/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An LV2 sample based drum plugin";
-    homepage = https://www.drumgizmo.org;
+    homepage = "https://www.drumgizmo.org";
     license = licenses.lgpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu maintainers.nico202 ];
diff --git a/pkgs/applications/audio/easytag/default.nix b/pkgs/applications/audio/easytag/default.nix
index 4c2b97e727f..3f294342da7 100644
--- a/pkgs/applications/audio/easytag/default.nix
+++ b/pkgs/applications/audio/easytag/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "View and edit tags for various audio files";
-    homepage = https://wiki.gnome.org/Apps/EasyTAG;
+    homepage = "https://wiki.gnome.org/Apps/EasyTAG";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/ecasound/default.nix b/pkgs/applications/audio/ecasound/default.nix
index c17f6b745b3..13c48fc12af 100644
--- a/pkgs/applications/audio/ecasound/default.nix
+++ b/pkgs/applications/audio/ecasound/default.nix
@@ -27,6 +27,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Ecasound is a software package designed for multitrack audio processing";
     license = with stdenv.lib.licenses;  [ gpl2 lgpl21 ];
-    homepage = http://nosignal.fi/ecasound/;
+    homepage = "http://nosignal.fi/ecasound/";
   };
 }
diff --git a/pkgs/applications/audio/eflite/default.nix b/pkgs/applications/audio/eflite/default.nix
index 2338c0ed376..f9a579512ca 100644
--- a/pkgs/applications/audio/eflite/default.nix
+++ b/pkgs/applications/audio/eflite/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
   CFLAGS = stdenv.lib.optionalString debug " -DDEBUG=2";
 
   meta = {
-    homepage = http://eflite.sourceforge.net;
+    homepage = "http://eflite.sourceforge.net";
     description = "EFlite is a speech server for screen readers";
     longDescription = ''
       EFlite is a speech server for Emacspeak and other screen
diff --git a/pkgs/applications/audio/ensemble-chorus/default.nix b/pkgs/applications/audio/ensemble-chorus/default.nix
index 5940203d04d..e2413a4fe87 100644
--- a/pkgs/applications/audio/ensemble-chorus/default.nix
+++ b/pkgs/applications/audio/ensemble-chorus/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jpcima/ensemble-chorus;
+    homepage = "https://github.com/jpcima/ensemble-chorus";
     description = "Digital model of electronic string ensemble chorus";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/eq10q/default.nix b/pkgs/applications/audio/eq10q/default.nix
index b4ad1505320..cc3a3c9ac1f 100644
--- a/pkgs/applications/audio/eq10q/default.nix
+++ b/pkgs/applications/audio/eq10q/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   patches = [
     (fetchpatch {
       # glibc 2.27 compatibility
-      url = https://sources.debian.org/data/main/e/eq10q/2.2~repack0-2.1/debian/patches/05-pow10.patch;
+      url = "https://sources.debian.org/data/main/e/eq10q/2.2~repack0-2.1/debian/patches/05-pow10.patch";
       sha256 = "07b0wf6k4xqgigv4h095bzfaw8r218wa36r9w1817jcys13r6c5r";
     })
   ];
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
       64 bits floating point internal audio processing.
       Nice GUI with powerful metering for every plugin.
     '';
-    homepage = http://eq10q.sourceforge.net/;
+    homepage = "http://eq10q.sourceforge.net/";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/espeak/default.nix b/pkgs/applications/audio/espeak/default.nix
index 6b5101b50b5..aa68fd5363d 100644
--- a/pkgs/applications/audio/espeak/default.nix
+++ b/pkgs/applications/audio/espeak/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Compact open source software speech synthesizer";
-    homepage = http://espeak.sourceforge.net/;
+    homepage = "http://espeak.sourceforge.net/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/espeak/edit.nix b/pkgs/applications/audio/espeak/edit.nix
index 8d7db50fd32..6bcffcbc5c3 100644
--- a/pkgs/applications/audio/espeak/edit.nix
+++ b/pkgs/applications/audio/espeak/edit.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Phoneme editor for espeak";
-    homepage = http://espeak.sourceforge.net/;
+    homepage = "http://espeak.sourceforge.net/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/eteroj.lv2/default.nix b/pkgs/applications/audio/eteroj.lv2/default.nix
index bbfe1ad5623..c86e7b5e9ba 100644
--- a/pkgs/applications/audio/eteroj.lv2/default.nix
+++ b/pkgs/applications/audio/eteroj.lv2/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "OSC injection/ejection from/to UDP/TCP/Serial for LV2";
-    homepage = https://open-music-kontrollers.ch/lv2/eteroj;
+    homepage = "https://open-music-kontrollers.ch/lv2/eteroj";
     license = licenses.artistic2;
     maintainers = with maintainers; [ magnetophon ];
   };
diff --git a/pkgs/applications/audio/faust/faust1.nix b/pkgs/applications/audio/faust/faust1.nix
index 687608b4352..64b8e724431 100644
--- a/pkgs/applications/audio/faust/faust1.nix
+++ b/pkgs/applications/audio/faust/faust1.nix
@@ -17,8 +17,8 @@ let
   };
 
   meta = with stdenv.lib; {
-    homepage = http://faust.grame.fr/;
-    downloadPage = https://sourceforge.net/projects/faudiostream/files/;
+    homepage = "http://faust.grame.fr/";
+    downloadPage = "https://sourceforge.net/projects/faudiostream/files/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ magnetophon pmahoney ];
diff --git a/pkgs/applications/audio/faust/faust2.nix b/pkgs/applications/audio/faust/faust2.nix
index cca0e21f835..33df1ce5d4e 100644
--- a/pkgs/applications/audio/faust/faust2.nix
+++ b/pkgs/applications/audio/faust/faust2.nix
@@ -31,8 +31,8 @@ let
   };
 
   meta = with stdenv.lib; {
-    homepage = http://faust.grame.fr/;
-    downloadPage = https://sourceforge.net/projects/faudiostream/files/;
+    homepage = "http://faust.grame.fr/";
+    downloadPage = "https://sourceforge.net/projects/faudiostream/files/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ magnetophon pmahoney ];
diff --git a/pkgs/applications/audio/faust/faustlive.nix b/pkgs/applications/audio/faust/faustlive.nix
index 3b6ca9e4053..90bd8bc60ad 100644
--- a/pkgs/applications/audio/faust/faustlive.nix
+++ b/pkgs/applications/audio/faust/faustlive.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
       together the convenience of a standalone interpreted language with the
       efficiency of a compiled language. It's ideal for fast prototyping.
     '';
-    homepage = http://faust.grame.fr/;
+    homepage = "http://faust.grame.fr/";
     license = licenses.gpl3;
   };
 }
diff --git a/pkgs/applications/audio/flac/default.nix b/pkgs/applications/audio/flac/default.nix
index df3aa987c3f..bd8b9bea82b 100644
--- a/pkgs/applications/audio/flac/default.nix
+++ b/pkgs/applications/audio/flac/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   outputs = [ "bin" "dev" "out" "man" "doc" ];
 
   meta = with stdenv.lib; {
-    homepage = https://xiph.org/flac/;
+    homepage = "https://xiph.org/flac/";
     description = "Library and tools for encoding and decoding the FLAC lossless audio file format";
     platforms = platforms.all;
     license = licenses.bsd3;
diff --git a/pkgs/applications/audio/flac123/default.nix b/pkgs/applications/audio/flac123/default.nix
index 19ed2352355..6f13b710eff 100644
--- a/pkgs/applications/audio/flac123/default.nix
+++ b/pkgs/applications/audio/flac123/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ flac libao libogg popt ];
 
   meta = with stdenv.lib; {
-    homepage = http://flac-tools.sourceforge.net/;
+    homepage = "http://flac-tools.sourceforge.net/";
     description = "A command-line program for playing FLAC audio files";
     license = licenses.gpl2Plus;
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/flacon/default.nix b/pkgs/applications/audio/flacon/default.nix
index eb39309a254..1da40e75415 100644
--- a/pkgs/applications/audio/flacon/default.nix
+++ b/pkgs/applications/audio/flacon/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Extracts audio tracks from an audio CD image to separate tracks.";
-    homepage = https://flacon.github.io/;
+    homepage = "https://flacon.github.io/";
     license = licenses.lgpl21;
     platforms = platforms.linux;
     maintainers = with maintainers; [ snglth ];
diff --git a/pkgs/applications/audio/fluidsynth/default.nix b/pkgs/applications/audio/fluidsynth/default.nix
index 8e2895bf847..9d9772cde29 100644
--- a/pkgs/applications/audio/fluidsynth/default.nix
+++ b/pkgs/applications/audio/fluidsynth/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation  {
 
   meta = with lib; {
     description = "Real-time software synthesizer based on the SoundFont 2 specifications";
-    homepage    = http://www.fluidsynth.org;
+    homepage    = "http://www.fluidsynth.org";
     license     = licenses.lgpl21Plus;
     maintainers = with maintainers; [ goibhniu lovek323 ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/audio/fmit/default.nix b/pkgs/applications/audio/fmit/default.nix
index ee45217e490..114cf5e192f 100644
--- a/pkgs/applications/audio/fmit/default.nix
+++ b/pkgs/applications/audio/fmit/default.nix
@@ -46,7 +46,7 @@ mkDerivation rec {
       FMIT is a graphical utility for tuning musical instruments, with error
       and volume history, and advanced features.
     '';
-    homepage = http://gillesdegottex.github.io/fmit/;
+    homepage = "http://gillesdegottex.github.io/fmit/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/fmsynth/default.nix b/pkgs/applications/audio/fmsynth/default.nix
index 248967e06e6..d957c7ec33d 100644
--- a/pkgs/applications/audio/fmsynth/default.nix
+++ b/pkgs/applications/audio/fmsynth/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation {
       - Full floating point implementation optimized for SIMD
       - Hard real-time constraints
     '';
-    homepage = https://github.com/Themaister/libfmsynth;
+    homepage = "https://github.com/Themaister/libfmsynth";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/fomp/default.nix b/pkgs/applications/audio/fomp/default.nix
index 9f7f0b09007..a712eef0650 100644
--- a/pkgs/applications/audio/fomp/default.nix
+++ b/pkgs/applications/audio/fomp/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ lv2 python2 ];
 
   meta = with stdenv.lib; {
-    homepage = http://drobilla.net/software/fomp/;
+    homepage = "http://drobilla.net/software/fomp/";
     description = "An LV2 port of the MCP, VCO, FIL, and WAH plugins by Fons Adriaensen";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/foo-yc20/default.nix b/pkgs/applications/audio/foo-yc20/default.nix
index e514032f44e..643b648fa88 100644
--- a/pkgs/applications/audio/foo-yc20/default.nix
+++ b/pkgs/applications/audio/foo-yc20/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   meta = {
     broken = true; # see: https://github.com/sampov2/foo-yc20/issues/7
     description = "A Faust implementation of a 1969 designed Yamaha combo organ, the YC-20";
-    homepage = https://github.com/sampov2/foo-yc20;
+    homepage = "https://github.com/sampov2/foo-yc20";
     license     = "BSD";
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/freewheeling/default.nix b/pkgs/applications/audio/freewheeling/default.nix
index 34494871f29..6ee120f3d1a 100644
--- a/pkgs/applications/audio/freewheeling/default.nix
+++ b/pkgs/applications/audio/freewheeling/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
         software, released under the GNU GPL license.
     '' ;
 
-    homepage = http://freewheeling.sourceforge.net;
+    homepage = "http://freewheeling.sourceforge.net";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.sepi ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/game-music-emu/default.nix b/pkgs/applications/audio/game-music-emu/default.nix
index d95b3eea596..51f895ea2d5 100644
--- a/pkgs/applications/audio/game-music-emu/default.nix
+++ b/pkgs/applications/audio/game-music-emu/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cmake ];
 
   meta = with stdenv.lib; {
-    homepage = https://bitbucket.org/mpyne/game-music-emu/wiki/Home;
+    homepage = "https://bitbucket.org/mpyne/game-music-emu/wiki/Home";
     description = "A collection of video game music file emulators";
     license = licenses.lgpl21Plus;
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/gigedit/default.nix b/pkgs/applications/audio/gigedit/default.nix
index b8ec2d7116f..08eec313508 100644
--- a/pkgs/applications/audio/gigedit/default.nix
+++ b/pkgs/applications/audio/gigedit/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.linuxsampler.org;
+    homepage = "http://www.linuxsampler.org";
     description = "Gigasampler file access library";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/gjay/default.nix b/pkgs/applications/audio/gjay/default.nix
index 42285ba4bf8..9e016c68608 100644
--- a/pkgs/applications/audio/gjay/default.nix
+++ b/pkgs/applications/audio/gjay/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Generates playlists such that each song sounds good following the previous song";
-    homepage = http://gjay.sourceforge.net/;
+    homepage = "http://gjay.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ pSub ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/audio/gmpc/default.nix b/pkgs/applications/audio/gmpc/default.nix
index cae35b62519..7ae02ae38d8 100644
--- a/pkgs/applications/audio/gmpc/default.nix
+++ b/pkgs/applications/audio/gmpc/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   libmpd = stdenv.mkDerivation {
     name = "libmpd-11.8.17";
     src = fetchurl {
-      url = http://download.sarine.nl/Programs/gmpc/11.8/libmpd-11.8.17.tar.gz;
+      url = "http://download.sarine.nl/Programs/gmpc/11.8/libmpd-11.8.17.tar.gz";
       sha256 = "10vspwsgr8pwf3qp2bviw6b2l8prgdiswgv7qiqiyr0h1mmk487y";
     };
     patches = [ ./libmpd-11.8.17-remove-strndup.patch ];
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://gmpclient.org;
+    homepage = "https://gmpclient.org";
     description = "A GTK2 frontend for Music Player Daemon";
     license = licenses.gpl2;
     maintainers = [];
diff --git a/pkgs/applications/audio/gmu/default.nix b/pkgs/applications/audio/gmu/default.nix
index 8446855d190..bfe9f72d664 100644
--- a/pkgs/applications/audio/gmu/default.nix
+++ b/pkgs/applications/audio/gmu/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://wejp.k.vu/projects/gmu;
+    homepage = "http://wejp.k.vu/projects/gmu";
     description = "Open source music player for portable gaming consoles and handhelds";
     license = stdenv.lib.licenses.gpl2;
   };
diff --git a/pkgs/applications/audio/gnome-podcasts/default.nix b/pkgs/applications/audio/gnome-podcasts/default.nix
index 26175085994..e24bd61693e 100644
--- a/pkgs/applications/audio/gnome-podcasts/default.nix
+++ b/pkgs/applications/audio/gnome-podcasts/default.nix
@@ -74,7 +74,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Listen to your favorite podcasts";
-    homepage = https://wiki.gnome.org/Apps/Podcasts;
+    homepage = "https://wiki.gnome.org/Apps/Podcasts";
     license = licenses.gpl3;
     maintainers = gnome3.maintainers;
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/google-play-music-desktop-player/default.nix b/pkgs/applications/audio/google-play-music-desktop-player/default.nix
index 332f2ca2342..509d3ddcf75 100644
--- a/pkgs/applications/audio/google-play-music-desktop-player/default.nix
+++ b/pkgs/applications/audio/google-play-music-desktop-player/default.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = https://www.googleplaymusicdesktopplayer.com/;
+    homepage = "https://www.googleplaymusicdesktopplayer.com/";
     description = "A beautiful cross platform Desktop Player for Google Play Music";
     license = stdenv.lib.licenses.mit;
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/audio/gpodder/default.nix b/pkgs/applications/audio/gpodder/default.nix
index 332a633616c..1905699e516 100644
--- a/pkgs/applications/audio/gpodder/default.nix
+++ b/pkgs/applications/audio/gpodder/default.nix
@@ -73,7 +73,7 @@ python3Packages.buildPythonApplication rec {
       gPodder downloads and manages free audio and video content (podcasts)
       for you. Listen directly on your computer or on your mobile devices.
     '';
-    homepage = http://gpodder.org/;
+    homepage = "http://gpodder.org/";
     license = licenses.gpl3;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ skeidel mic92 ];
diff --git a/pkgs/applications/audio/gradio/default.nix b/pkgs/applications/audio/gradio/default.nix
index 487b0a730d8..384235fc065 100644
--- a/pkgs/applications/audio/gradio/default.nix
+++ b/pkgs/applications/audio/gradio/default.nix
@@ -63,7 +63,7 @@ in stdenv.mkDerivation {
   patches = [ ./0001-Remove-post-install-script-that-hardcodes-paths.patch ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/haecker-felix/gradio;
+    homepage = "https://github.com/haecker-felix/gradio";
     description = "A GTK3 app for finding and listening to internet radio stations";
     license = licenses.gpl3;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/gtklick/default.nix b/pkgs/applications/audio/gtklick/default.nix
index b653ae5ca58..a81834c1fff 100644
--- a/pkgs/applications/audio/gtklick/default.nix
+++ b/pkgs/applications/audio/gtklick/default.nix
@@ -27,7 +27,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   meta = {
-    homepage = http://das.nasophon.de/gtklick/;
+    homepage = "http://das.nasophon.de/gtklick/";
     description = "Simple metronome with an easy-to-use GTK interface";
     license = stdenv.lib.licenses.gpl2Plus;
   };
diff --git a/pkgs/applications/audio/gtkpod/default.nix b/pkgs/applications/audio/gtkpod/default.nix
index fd3632ee155..1f293fe2d79 100644
--- a/pkgs/applications/audio/gtkpod/default.nix
+++ b/pkgs/applications/audio/gtkpod/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GTK Manager for an Apple ipod";
-    homepage = http://gtkpod.sourceforge.net;
+    homepage = "http://gtkpod.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.skeidel ];
diff --git a/pkgs/applications/audio/guitarix/default.nix b/pkgs/applications/audio/guitarix/default.nix
index acb078fea87..095cd79b56e 100644
--- a/pkgs/applications/audio/guitarix/default.nix
+++ b/pkgs/applications/audio/guitarix/default.nix
@@ -62,7 +62,7 @@ stdenv.mkDerivation rec {
       clean-sounds, nice overdrive, fat distortion and a diversity of
       crazy sounds never heard before.
     '';
-    homepage = http://guitarix.sourceforge.net/;
+    homepage = "http://guitarix.sourceforge.net/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ astsmtl goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/gxmatcheq-lv2/default.nix b/pkgs/applications/audio/gxmatcheq-lv2/default.nix
index 1d5579d74c0..b2d99e0eba8 100644
--- a/pkgs/applications/audio/gxmatcheq-lv2/default.nix
+++ b/pkgs/applications/audio/gxmatcheq-lv2/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "INSTALL_DIR=$(out)/lib/lv2" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/brummer10/GxMatchEQ.lv2;
+    homepage = "https://github.com/brummer10/GxMatchEQ.lv2";
     description = "Matching Equalizer to apply EQ curve from one source to another source";
     maintainers = [ maintainers.magnetophon ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/audio/gxplugins-lv2/default.nix b/pkgs/applications/audio/gxplugins-lv2/default.nix
index 1f4323eb9d5..077bb407020 100644
--- a/pkgs/applications/audio/gxplugins-lv2/default.nix
+++ b/pkgs/applications/audio/gxplugins-lv2/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/brummer10/GxPlugins.lv2;
+    homepage = "https://github.com/brummer10/GxPlugins.lv2";
     description = "A set of extra lv2 plugins from the guitarix project";
     maintainers = [ maintainers.magnetophon ];
     license = licenses.gpl3;
diff --git a/pkgs/applications/audio/helio-workstation/default.nix b/pkgs/applications/audio/helio-workstation/default.nix
index bfd211316a7..3ada3224e33 100644
--- a/pkgs/applications/audio/helio-workstation/default.nix
+++ b/pkgs/applications/audio/helio-workstation/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "One music sequencer for all major platforms, both desktop and mobile";
-    homepage = https://helio.fm/;
+    homepage = "https://helio.fm/";
     license = licenses.gpl3;
     maintainers = [ maintainers.suhr ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/audio/helm/default.nix b/pkgs/applications/audio/helm/default.nix
index 428490e119a..8459967a363 100644
--- a/pkgs/applications/audio/helm/default.nix
+++ b/pkgs/applications/audio/helm/default.nix
@@ -34,7 +34,7 @@
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://tytel.org/helm;
+    homepage = "http://tytel.org/helm";
     description = "A free, cross-platform, polyphonic synthesizer";
     longDescription = ''
       A free, cross-platform, polyphonic synthesizer.
diff --git a/pkgs/applications/audio/hybridreverb2/default.nix b/pkgs/applications/audio/hybridreverb2/default.nix
index 19aac1bd1e9..3f1fac79623 100644
--- a/pkgs/applications/audio/hybridreverb2/default.nix
+++ b/pkgs/applications/audio/hybridreverb2/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www2.ika.ruhr-uni-bochum.de/HybridReverb2;
+    homepage = "http://www2.ika.ruhr-uni-bochum.de/HybridReverb2";
     description = "Reverb effect using hybrid impulse convolution";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/hydrogen/default.nix b/pkgs/applications/audio/hydrogen/default.nix
index d8aa2a013c4..b3aff4e4c50 100644
--- a/pkgs/applications/audio/hydrogen/default.nix
+++ b/pkgs/applications/audio/hydrogen/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Advanced drum machine";
-    homepage = http://www.hydrogen-music.org;
+    homepage = "http://www.hydrogen-music.org";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/i-score/default.nix b/pkgs/applications/audio/i-score/default.nix
index f3928499413..daedb9b9820 100644
--- a/pkgs/applications/audio/i-score/default.nix
+++ b/pkgs/applications/audio/i-score/default.nix
@@ -77,7 +77,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "An interactive sequencer for the intermedia arts";
-    homepage = http://i-score.org/;
+    homepage = "http://i-score.org/";
     license = stdenv.lib.licenses.cecill20;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/iannix/default.nix b/pkgs/applications/audio/iannix/default.nix
index a893390d74e..2d4a2e9265a 100644
--- a/pkgs/applications/audio/iannix/default.nix
+++ b/pkgs/applications/audio/iannix/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Graphical open-source sequencer,";
-    homepage = https://www.iannix.org/;
+    homepage = "https://www.iannix.org/";
     license = stdenv.lib.licenses.lgpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/id3v2/default.nix b/pkgs/applications/audio/id3v2/default.nix
index 0fdb3b2a4a1..75d999ede1d 100644
--- a/pkgs/applications/audio/id3v2/default.nix
+++ b/pkgs/applications/audio/id3v2/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A command line editor for id3v2 tags";
-    homepage = http://id3v2.sourceforge.net/;
+    homepage = "http://id3v2.sourceforge.net/";
     license = licenses.gpl2Plus;
     platforms = with platforms; unix;
   };
diff --git a/pkgs/applications/audio/infamousPlugins/default.nix b/pkgs/applications/audio/infamousPlugins/default.nix
index 341c4181842..2cfe77ec291 100644
--- a/pkgs/applications/audio/infamousPlugins/default.nix
+++ b/pkgs/applications/audio/infamousPlugins/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cairomm lv2 libpthreadstubs libXdmcp libXft ntk pcre fftwFloat zita-resampler ];
 
   meta = with stdenv.lib; {
-    homepage = https://ssj71.github.io/infamousPlugins;
+    homepage = "https://ssj71.github.io/infamousPlugins";
     description = "A collection of open-source LV2 plugins";
     longDescription = ''
       These are audio plugins in the LV2 format, developed for linux. Most are suitable for live use.
diff --git a/pkgs/applications/audio/ingen/default.nix b/pkgs/applications/audio/ingen/default.nix
index 9d3fb6aae40..c5d4b3f87f4 100644
--- a/pkgs/applications/audio/ingen/default.nix
+++ b/pkgs/applications/audio/ingen/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "A modular audio processing system using JACK and LV2 or LADSPA plugins";
-    homepage = http://drobilla.net/software/ingen;
+    homepage = "http://drobilla.net/software/ingen";
     license = licenses.agpl3Plus;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/ir.lv2/default.nix b/pkgs/applications/audio/ir.lv2/default.nix
index 9d3656a81f9..f9f58ab5ec1 100644
--- a/pkgs/applications/audio/ir.lv2/default.nix
+++ b/pkgs/applications/audio/ir.lv2/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://factorial.hu/plugins/lv2/ir;
+    homepage = "http://factorial.hu/plugins/lv2/ir";
     description = "Zero-latency, realtime, high performance signal convolver especially for creating reverb effects";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/jaaa/default.nix b/pkgs/applications/audio/jaaa/default.nix
index 92b2f8ac515..80f15935af2 100644
--- a/pkgs/applications/audio/jaaa/default.nix
+++ b/pkgs/applications/audio/jaaa/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     description = "JACK and ALSA Audio Analyser";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/jack-capture/default.nix b/pkgs/applications/audio/jack-capture/default.nix
index c62ccc4fc88..e443a0a5269 100644
--- a/pkgs/applications/audio/jack-capture/default.nix
+++ b/pkgs/applications/audio/jack-capture/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A program for recording soundfiles with jack";
-    homepage = http://archive.notam02.no/arkiv/src;
+    homepage = "http://archive.notam02.no/arkiv/src";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jack-oscrolloscope/default.nix b/pkgs/applications/audio/jack-oscrolloscope/default.nix
index 5bad5453504..08263f2abdd 100644
--- a/pkgs/applications/audio/jack-oscrolloscope/default.nix
+++ b/pkgs/applications/audio/jack-oscrolloscope/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; { 
     description = "A simple waveform viewer for JACK";
-    homepage = http://das.nasophon.de/jack_oscrolloscope;
+    homepage = "http://das.nasophon.de/jack_oscrolloscope";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jack-rack/default.nix b/pkgs/applications/audio/jack-rack/default.nix
index 2f9b9db93c2..d13dbcc1688 100644
--- a/pkgs/applications/audio/jack-rack/default.nix
+++ b/pkgs/applications/audio/jack-rack/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       be controlled using the ALSA sequencer. It's phat; it turns your
       computer into an effects box.
     '';
-    homepage = http://jack-rack.sourceforge.net/;
+    homepage = "http://jack-rack.sourceforge.net/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.astsmtl ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jackmeter/default.nix b/pkgs/applications/audio/jackmeter/default.nix
index e44dfddd37b..2a75b384af5 100644
--- a/pkgs/applications/audio/jackmeter/default.nix
+++ b/pkgs/applications/audio/jackmeter/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = { 
     description = "Console jack loudness meter";
-    homepage = https://www.aelius.com/njh/jackmeter/;
+    homepage = "https://www.aelius.com/njh/jackmeter/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.marcweber ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jackmix/default.nix b/pkgs/applications/audio/jackmix/default.nix
index 5df6e1e2dae..c3a46439ba7 100644
--- a/pkgs/applications/audio/jackmix/default.nix
+++ b/pkgs/applications/audio/jackmix/default.nix
@@ -3,7 +3,7 @@
 stdenv.mkDerivation {
   name = "jackmix-0.5.2";
   src = fetchurl {
-    url = https://github.com/kampfschlaefer/jackmix/archive/v0.5.2.tar.gz;
+    url = "https://github.com/kampfschlaefer/jackmix/archive/v0.5.2.tar.gz";
     sha256 = "18f5v7g66mgarhs476frvayhch7fy4nyjf2xivixc061ipn0m82j";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Matrix-Mixer for the Jack-Audio-connection-Kit";
-    homepage = http://www.arnoldarts.de/jackmix/;
+    homepage = "http://www.arnoldarts.de/jackmix/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.kampfschlaefer ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/jalv/default.nix b/pkgs/applications/audio/jalv/default.nix
index 51ec102dbfd..bbf66a74bc5 100644
--- a/pkgs/applications/audio/jalv/default.nix
+++ b/pkgs/applications/audio/jalv/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "A simple but fully featured LV2 host for Jack";
-    homepage = http://drobilla.net/software/jalv;
+    homepage = "http://drobilla.net/software/jalv";
     license = licenses.isc;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/jamin/default.nix b/pkgs/applications/audio/jamin/default.nix
index 818630585cf..a9b423320a0 100644
--- a/pkgs/applications/audio/jamin/default.nix
+++ b/pkgs/applications/audio/jamin/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   name = "jamin-0.95.0";
 
   src = fetchurl {
-    url = mirror://sourceforge/jamin/jamin-0.95.0.tar.gz;
+    url = "mirror://sourceforge/jamin/jamin-0.95.0.tar.gz";
     sha256 = "0g5v74cm0q3p3pzl6xmnp4rqayaymfli7c6z8s78h9rgd24fwbvn";
   };
 
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://jamin.sourceforge.net;
+    homepage = "http://jamin.sourceforge.net";
     description = "JACK Audio Mastering interface";
     license = licenses.gpl2;
     maintainers = [ maintainers.nico202 ];
diff --git a/pkgs/applications/audio/japa/default.nix b/pkgs/applications/audio/japa/default.nix
index a9eb15aabf3..426fea21107 100644
--- a/pkgs/applications/audio/japa/default.nix
+++ b/pkgs/applications/audio/japa/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A 'perceptual' or 'psychoacoustic' audio spectrum analyser for JACK and ALSA";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/keyfinder/default.nix b/pkgs/applications/audio/keyfinder/default.nix
index d47fc3b6190..710c1e80792 100644
--- a/pkgs/applications/audio/keyfinder/default.nix
+++ b/pkgs/applications/audio/keyfinder/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
       management, no track suggestions, no media player. Just a fast,
       efficient workflow tool.
     '';
-    homepage = http://www.ibrahimshaath.co.uk/keyfinder/;
+    homepage = "http://www.ibrahimshaath.co.uk/keyfinder/";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/kid3/default.nix b/pkgs/applications/audio/kid3/default.nix
index dcd305abdee..cfcad390f4c 100644
--- a/pkgs/applications/audio/kid3/default.nix
+++ b/pkgs/applications/audio/kid3/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
       - Edit synchronized lyrics and event timing codes, import and
         export LRC files
     '';
-    homepage = http://kid3.sourceforge.net/;
+    homepage = "http://kid3.sourceforge.net/";
     license = licenses.lgpl2Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/klick/default.nix b/pkgs/applications/audio/klick/default.nix
index f33245d8f1c..9ff063c1c80 100644
--- a/pkgs/applications/audio/klick/default.nix
+++ b/pkgs/applications/audio/klick/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE = "-fpermissive";
 
   meta = {
-    homepage = http://das.nasophon.de/klick/;
+    homepage = "http://das.nasophon.de/klick/";
     description = "Advanced command-line metronome for JACK";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/ladspa-plugins/default.nix b/pkgs/applications/audio/ladspa-plugins/default.nix
index 44186abc3c4..a0fc8631fb3 100644
--- a/pkgs/applications/audio/ladspa-plugins/default.nix
+++ b/pkgs/applications/audio/ladspa-plugins/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://plugin.org.uk/;
+    homepage = "http://plugin.org.uk/";
     description = "LADSPA format audio plugins";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/ladspa-sdk/default.nix b/pkgs/applications/audio/ladspa-sdk/default.nix
index a7779ee8aee..76acd1daba7 100644
--- a/pkgs/applications/audio/ladspa-sdk/default.nix
+++ b/pkgs/applications/audio/ladspa-sdk/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
       ten example LADSPA plugins and
       three example programs (applyplugin, analyseplugin and listplugins).
     '';
-    homepage = http://www.ladspa.org/ladspa_sdk/overview.html;
+    homepage = "http://www.ladspa.org/ladspa_sdk/overview.html";
     license = stdenv.lib.licenses.lgpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/ladspa-sdk/ladspah.nix b/pkgs/applications/audio/ladspa-sdk/ladspah.nix
index 3fad5de1de5..d51aa3b75e1 100644
--- a/pkgs/applications/audio/ladspa-sdk/ladspah.nix
+++ b/pkgs/applications/audio/ladspa-sdk/ladspah.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
       The ladspa.h API header file from the LADSPA SDK.
       For the full SDK, use the ladspa-sdk package.
     '';
-    homepage = http://www.ladspa.org/ladspa_sdk/overview.html;
+    homepage = "http://www.ladspa.org/ladspa_sdk/overview.html";
     license = stdenv.lib.licenses.lgpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/applications/audio/lash/default.nix b/pkgs/applications/audio/lash/default.nix
index 0dbe60b6a61..cb0a3ee05e1 100644
--- a/pkgs/applications/audio/lash/default.nix
+++ b/pkgs/applications/audio/lash/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation  rec {
     longDescription = ''
       Session management system for GNU/Linux audio applications.
     '';
-    homepage = https://www.nongnu.org/lash;
+    homepage = "https://www.nongnu.org/lash";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/lastfmsubmitd/default.nix b/pkgs/applications/audio/lastfmsubmitd/default.nix
index 3135a00334c..efafc5b05b1 100644
--- a/pkgs/applications/audio/lastfmsubmitd/default.nix
+++ b/pkgs/applications/audio/lastfmsubmitd/default.nix
@@ -14,7 +14,7 @@ pythonPackages.buildPythonApplication rec {
   installCommand = "python setup.py install --prefix=$out";
 
   meta = {
-    homepage = https://www.red-bean.com/decklin/lastfmsubmitd/;
+    homepage = "https://www.red-bean.com/decklin/lastfmsubmitd/";
     license = lib.licenses.mit;
     description = "An last.fm audio scrobbler and daemon";
   };
diff --git a/pkgs/applications/audio/linuxband/default.nix b/pkgs/applications/audio/linuxband/default.nix
index b5a99150cb2..cd9ca5e2674 100644
--- a/pkgs/applications/audio/linuxband/default.nix
+++ b/pkgs/applications/audio/linuxband/default.nix
@@ -29,7 +29,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "A GUI front-end for MMA: Type in the chords, choose the groove and it will play an accompaniment";
-    homepage = http://linuxband.org/;
+    homepage = "http://linuxband.org/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/linuxsampler/default.nix b/pkgs/applications/audio/linuxsampler/default.nix
index f13f10d15e8..6b6cfd55926 100644
--- a/pkgs/applications/audio/linuxsampler/default.nix
+++ b/pkgs/applications/audio/linuxsampler/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.linuxsampler.org;
+    homepage = "http://www.linuxsampler.org";
     description = "Sampler backend";
     longDescription = ''
       Includes sampler engine, audio and MIDI drivers, network layer
diff --git a/pkgs/applications/audio/lmms/default.nix b/pkgs/applications/audio/lmms/default.nix
index 0420a52d89b..c243e9beb23 100644
--- a/pkgs/applications/audio/lmms/default.nix
+++ b/pkgs/applications/audio/lmms/default.nix
@@ -41,7 +41,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "DAW similar to FL Studio (music production software)";
-    homepage = https://lmms.io;
+    homepage = "https://lmms.io";
     license = licenses.gpl2Plus;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = with maintainers; [ goibhniu yegortimoshenko ];
diff --git a/pkgs/applications/audio/lollypop/default.nix b/pkgs/applications/audio/lollypop/default.nix
index d0f88170980..a3580ce3b52 100644
--- a/pkgs/applications/audio/lollypop/default.nix
+++ b/pkgs/applications/audio/lollypop/default.nix
@@ -94,7 +94,7 @@ python3.pkgs.buildPythonApplication rec  {
   meta = with lib; {
     changelog = "https://gitlab.gnome.org/World/lollypop/tags/${version}";
     description = "A modern music player for GNOME";
-    homepage = https://wiki.gnome.org/Apps/Lollypop;
+    homepage = "https://wiki.gnome.org/Apps/Lollypop";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/lsp-plugins/default.nix b/pkgs/applications/audio/lsp-plugins/default.nix
index 8a2f64b4efd..a8aa101ab4d 100644
--- a/pkgs/applications/audio/lsp-plugins/default.nix
+++ b/pkgs/applications/audio/lsp-plugins/default.nix
@@ -140,7 +140,7 @@ stdenv.mkDerivation rec {
         - Delay Compensator Stereo - Verzögerungsausgleicher Stereo
         - Delay Compensator x2 Stereo - Verzögerungsausgleicher x2 Stereo
       '';
-      homepage = https://lsp-plug.in;
+      homepage = "https://lsp-plug.in";
       maintainers = with maintainers; [ magnetophon ];
       license = licenses.gpl2;
       platforms = platforms.linux;
diff --git a/pkgs/applications/audio/luppp/default.nix b/pkgs/applications/audio/luppp/default.nix
index fdba836a6ae..c1494ffc333 100644
--- a/pkgs/applications/audio/luppp/default.nix
+++ b/pkgs/applications/audio/luppp/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://openavproductions.com/luppp/;
+    homepage = "http://openavproductions.com/luppp/";
     description = "A music creation tool, intended for live use";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ prusnak ];
diff --git a/pkgs/applications/audio/lv2bm/default.nix b/pkgs/applications/audio/lv2bm/default.nix
index f1eddb62624..aee910f56eb 100644
--- a/pkgs/applications/audio/lv2bm/default.nix
+++ b/pkgs/applications/audio/lv2bm/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/portalmod/lv2bm;
+    homepage = "https://github.com/portalmod/lv2bm";
     description = "A benchmark tool for LV2 plugins";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix b/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix
index 6488d1bd65e..e16198696a6 100644
--- a/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/CharacterCompressor/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A compressor with character. For jack and lv2";
-    homepage = https://github.com/magnetophon/CharacterCompressor;
+    homepage = "https://github.com/magnetophon/CharacterCompressor";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix b/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix
index c5728b6e8b7..1ccc9f3fcd5 100644
--- a/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/CompBus/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A group of compressors mixed into a bus, sidechained from that mix bus. For jack and lv2";
-    homepage = https://github.com/magnetophon/CompBus;
+    homepage = "https://github.com/magnetophon/CompBus";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix b/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix
index 331e58c4bd2..d5ed7e85b69 100644
--- a/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/ConstantDetuneChorus/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A chorus algorithm that maintains constant and symmetric detuning depth (in cents), regardless of modulation rate. For jack and lv2";
-    homepage = https://github.com/magnetophon/constant-detune-chorus;
+    homepage = "https://github.com/magnetophon/constant-detune-chorus";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix b/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix
index 046ee70e990..6d119394d5d 100644
--- a/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/LazyLimiter/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A fast yet clean lookahead limiter for jack and lv2";
-    homepage = https://magnetophon.github.io/LazyLimiter/;
+    homepage = "https://magnetophon.github.io/LazyLimiter/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix b/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix
index aa7da17dafd..0eb68e65eae 100644
--- a/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/MBdistortion/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Mid-side multiband distortion for jack and lv2";
-    homepage = https://github.com/magnetophon/MBdistortion;
+    homepage = "https://github.com/magnetophon/MBdistortion";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix b/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix
index ae05866e57d..be8ad72d28d 100644
--- a/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/RhythmDelay/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Tap a rhythm into your delay! For jack and lv2";
-    homepage = https://github.com/magnetophon/RhythmDelay;
+    homepage = "https://github.com/magnetophon/RhythmDelay";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix b/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
index 718bbdaf49e..dce2db4cb77 100644
--- a/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/VoiceOfFaust/default.nix
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Turn your voice into a synthesizer";
-    homepage = https://github.com/magnetophon/VoiceOfFaust;
+    homepage = "https://github.com/magnetophon/VoiceOfFaust";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix b/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix
index 735e7efe54d..172b5ed3891 100644
--- a/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A collection of bread and butter compressors";
-    homepage = https://github.com/magnetophon/faustCompressors;
+    homepage = "https://github.com/magnetophon/faustCompressors";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix b/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix
index 356e95bf97c..11d51d756ab 100644
--- a/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/pluginUtils/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Some simple utility lv2 plugins";
-    homepage = https://github.com/magnetophon/pluginUtils;
+    homepage = "https://github.com/magnetophon/pluginUtils";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix b/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix
index 292cd3dfd86..360cee243c3 100644
--- a/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix
+++ b/pkgs/applications/audio/magnetophonDSP/shelfMultiBand/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A multiband compressor made from shelving filters.";
-    homepage = https://github.com/magnetophon/shelfMultiBand;
+    homepage = "https://github.com/magnetophon/shelfMultiBand";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/mda-lv2/default.nix b/pkgs/applications/audio/mda-lv2/default.nix
index 6c4170cf0fb..2464abb6585 100644
--- a/pkgs/applications/audio/mda-lv2/default.nix
+++ b/pkgs/applications/audio/mda-lv2/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ fftwSinglePrec lv2 ];
 
   meta = with stdenv.lib; {
-    homepage = http://drobilla.net/software/mda-lv2/;
+    homepage = "http://drobilla.net/software/mda-lv2/";
     description = "An LV2 port of the MDA plugins by Paul Kellett";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/meterbridge/default.nix b/pkgs/applications/audio/meterbridge/default.nix
index 4d2fa0e15b4..9d807358cd5 100644
--- a/pkgs/applications/audio/meterbridge/default.nix
+++ b/pkgs/applications/audio/meterbridge/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Various meters (VU, PPM, DPM, JF, SCO) for Jack Audio Connection Kit";
-    homepage = http://plugin.org.uk/meterbridge/;
+    homepage = "http://plugin.org.uk/meterbridge/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.nico202 ];
diff --git a/pkgs/applications/audio/meters_lv2/default.nix b/pkgs/applications/audio/meters_lv2/default.nix
index 12383dcbbda..cd9523d2710 100644
--- a/pkgs/applications/audio/meters_lv2/default.nix
+++ b/pkgs/applications/audio/meters_lv2/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib;
     { description = "Collection of audio level meters with GUI in LV2 plugin format";
-      homepage = http://x42.github.io/meters.lv2/;
+      homepage = "http://x42.github.io/meters.lv2/";
       maintainers = with maintainers; [ ehmry ];
       license = licenses.gpl2;
       platforms = platforms.linux;
diff --git a/pkgs/applications/audio/mhwaveedit/default.nix b/pkgs/applications/audio/mhwaveedit/default.nix
index e4d6c0293df..67204260da2 100644
--- a/pkgs/applications/audio/mhwaveedit/default.nix
+++ b/pkgs/applications/audio/mhwaveedit/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Graphical program for editing, playing and recording sound files";
-    homepage = https://github.com/magnush/mhwaveedit;
+    homepage = "https://github.com/magnush/mhwaveedit";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/mid2key/default.nix b/pkgs/applications/audio/mid2key/default.nix
index 3c5660724d3..071b18e5a8a 100644
--- a/pkgs/applications/audio/mid2key/default.nix
+++ b/pkgs/applications/audio/mid2key/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   installPhase = "mkdir -p $out/bin && mv mid2key $out/bin";
 
   meta = with stdenv.lib; {
-    homepage = http://code.google.com/p/mid2key/;
+    homepage = "http://code.google.com/p/mid2key/";
     description = "A simple tool which maps midi notes to simulated keystrokes";
     license = licenses.gpl3;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/midas/m32edit.nix b/pkgs/applications/audio/midas/m32edit.nix
index c8a751c235b..6af11d42e31 100644
--- a/pkgs/applications/audio/midas/m32edit.nix
+++ b/pkgs/applications/audio/midas/m32edit.nix
@@ -5,5 +5,5 @@ callPackage ./generic.nix (args // {
   type = "M32";
   version = "3.2";
   sha256 = "1cds6qinz37086l6pmmgrzrxadygjr2z96sjjyznnai2wz4z2nrd";
-  homepage = http://www.musictri.be/Categories/Midas/Mixers/Digital/M32/p/P0B3I/downloads;
+  homepage = "http://www.musictri.be/Categories/Midas/Mixers/Digital/M32/p/P0B3I/downloads";
 })
diff --git a/pkgs/applications/audio/midas/x32edit.nix b/pkgs/applications/audio/midas/x32edit.nix
index 4aacfcc89a3..7e364ff984a 100644
--- a/pkgs/applications/audio/midas/x32edit.nix
+++ b/pkgs/applications/audio/midas/x32edit.nix
@@ -5,5 +5,5 @@ callPackage ./generic.nix (args // {
   type = "X32";
   version = "3.2";
   sha256 = "1lzmhd0sqnlzc0khpwm82sfi48qhv7rg153a57qjih7hhhy41mzk";
-  homepage = http://www.musictri.be/Categories/Behringer/Mixers/Digital/X32/p/P0ASF/downloads;
+  homepage = "http://www.musictri.be/Categories/Behringer/Mixers/Digital/X32/p/P0ASF/downloads";
 })
diff --git a/pkgs/applications/audio/midisheetmusic/default.nix b/pkgs/applications/audio/midisheetmusic/default.nix
index 48052fc4ec8..388fc2a1b3e 100644
--- a/pkgs/applications/audio/midisheetmusic/default.nix
+++ b/pkgs/applications/audio/midisheetmusic/default.nix
@@ -54,7 +54,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Convert MIDI Files to Piano Sheet Music for two hands";
-    homepage = http://midisheetmusic.com;
+    homepage = "http://midisheetmusic.com";
     license = licenses.gpl2;
     maintainers = [ maintainers.gnidorah ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/mikmod/default.nix b/pkgs/applications/audio/mikmod/default.nix
index 42fa8b7621a..9be303cb652 100644
--- a/pkgs/applications/audio/mikmod/default.nix
+++ b/pkgs/applications/audio/mikmod/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Tracker music player for the terminal";
-    homepage = http://mikmod.shlomifish.org/;
+    homepage = "http://mikmod.shlomifish.org/";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/audio/milkytracker/default.nix b/pkgs/applications/audio/milkytracker/default.nix
index bc508f92e3b..d7b9e5a6355 100644
--- a/pkgs/applications/audio/milkytracker/default.nix
+++ b/pkgs/applications/audio/milkytracker/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music tracker application, similar to Fasttracker II";
-    homepage = http://milkytracker.org;
+    homepage = "http://milkytracker.org";
     license = licenses.gpl3Plus;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = with maintainers; [ zoomulator ];
diff --git a/pkgs/applications/audio/mimic/default.nix b/pkgs/applications/audio/mimic/default.nix
index e91b2c9360d..e33e69ad78c 100644
--- a/pkgs/applications/audio/mimic/default.nix
+++ b/pkgs/applications/audio/mimic/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Mycroft's TTS engine, based on CMU's Flite (Festival Lite)";
-    homepage = https://mimic.mycroft.ai/;
+    homepage = "https://mimic.mycroft.ai/";
     license = stdenv.lib.licenses.free;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.noneucat ];
diff --git a/pkgs/applications/audio/mimms/default.nix b/pkgs/applications/audio/mimms/default.nix
index 2d301a8b6a9..47e9fa306dc 100644
--- a/pkgs/applications/audio/mimms/default.nix
+++ b/pkgs/applications/audio/mimms/default.nix
@@ -15,7 +15,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   meta = {
-    homepage = https://savannah.nongnu.org/projects/mimms/;
+    homepage = "https://savannah.nongnu.org/projects/mimms/";
     license = stdenv.lib.licenses.gpl3;
     description = "An mms (e.g. mms://) stream downloader";
 
diff --git a/pkgs/applications/audio/mixxx/default.nix b/pkgs/applications/audio/mixxx/default.nix
index 8de05ee309b..f889d9e1e8d 100644
--- a/pkgs/applications/audio/mixxx/default.nix
+++ b/pkgs/applications/audio/mixxx/default.nix
@@ -49,7 +49,7 @@ mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://mixxx.org;
+    homepage = "https://mixxx.org";
     description = "Digital DJ mixing software";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.aszlig maintainers.goibhniu maintainers.bfortz ];
diff --git a/pkgs/applications/audio/moc/default.nix b/pkgs/applications/audio/moc/default.nix
index 5615f4cace3..18b5a980633 100644
--- a/pkgs/applications/audio/moc/default.nix
+++ b/pkgs/applications/audio/moc/default.nix
@@ -96,7 +96,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An ncurses console audio player designed to be powerful and easy to use";
-    homepage = http://moc.daper.net/;
+    homepage = "http://moc.daper.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ aethelz pSub jagajaga ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/mod-distortion/default.nix b/pkgs/applications/audio/mod-distortion/default.nix
index c20f04ec947..765def25d60 100644
--- a/pkgs/applications/audio/mod-distortion/default.nix
+++ b/pkgs/applications/audio/mod-distortion/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   installFlags = [ "INSTALL_PATH=$(out)/lib/lv2" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/portalmod/mod-distortion;
+    homepage = "https://github.com/portalmod/mod-distortion";
     description = "Analog distortion emulation lv2 plugins";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/mopidy/gmusic.nix b/pkgs/applications/audio/mopidy/gmusic.nix
index 8c173140efd..3dea9156f8f 100644
--- a/pkgs/applications/audio/mopidy/gmusic.nix
+++ b/pkgs/applications/audio/mopidy/gmusic.nix
@@ -19,7 +19,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://www.mopidy.com/;
+    homepage = "https://www.mopidy.com/";
     description = "Mopidy extension for playing music from Google Play Music";
     license = licenses.asl20;
     maintainers = [ maintainers.jgillich ];
diff --git a/pkgs/applications/audio/mopidy/iris.nix b/pkgs/applications/audio/mopidy/iris.nix
index 000a0bc0bfe..2badfd6a0b1 100644
--- a/pkgs/applications/audio/mopidy/iris.nix
+++ b/pkgs/applications/audio/mopidy/iris.nix
@@ -21,7 +21,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jaedb/Iris;
+    homepage = "https://github.com/jaedb/Iris";
     description = "A fully-functional Mopidy web client encompassing Spotify and many other backends";
     license = licenses.asl20;
     maintainers = [ maintainers.rvolosatovs ];
diff --git a/pkgs/applications/audio/mopidy/local-images.nix b/pkgs/applications/audio/mopidy/local-images.nix
index 2ffc736572b..085fe855e8a 100644
--- a/pkgs/applications/audio/mopidy/local-images.nix
+++ b/pkgs/applications/audio/mopidy/local-images.nix
@@ -24,7 +24,7 @@ pythonPackages.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mopidy/mopidy-local-images;
+    homepage = "https://github.com/mopidy/mopidy-local-images";
     description = "Mopidy local library proxy extension for handling embedded album art";
     license = licenses.asl20;
     maintainers = [ maintainers.rvolosatovs ];
diff --git a/pkgs/applications/audio/mopidy/local-sqlite.nix b/pkgs/applications/audio/mopidy/local-sqlite.nix
index 6d0cc370ff3..23e01c02a0f 100644
--- a/pkgs/applications/audio/mopidy/local-sqlite.nix
+++ b/pkgs/applications/audio/mopidy/local-sqlite.nix
@@ -17,7 +17,7 @@ pythonPackages.buildPythonApplication rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/mopidy/mopidy-local-sqlite;
+    homepage = "https://github.com/mopidy/mopidy-local-sqlite";
     description = "Mopidy SQLite local library extension";
     license = licenses.asl20;
     maintainers = [ maintainers.rvolosatovs ];
diff --git a/pkgs/applications/audio/mopidy/moped.nix b/pkgs/applications/audio/mopidy/moped.nix
index d41fb12ae8d..ffd9af76d17 100644
--- a/pkgs/applications/audio/mopidy/moped.nix
+++ b/pkgs/applications/audio/mopidy/moped.nix
@@ -17,7 +17,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/martijnboland/moped;
+    homepage = "https://github.com/martijnboland/moped";
     description = "A web client for Mopidy";
     license = licenses.mit;
     maintainers = [];
diff --git a/pkgs/applications/audio/mopidy/mopify.nix b/pkgs/applications/audio/mopidy/mopify.nix
index b657f69e26e..a9902ca4172 100644
--- a/pkgs/applications/audio/mopidy/mopify.nix
+++ b/pkgs/applications/audio/mopidy/mopify.nix
@@ -15,7 +15,7 @@ pythonPackages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dirkgroenen/mopidy-mopify;
+    homepage = "https://github.com/dirkgroenen/mopidy-mopify";
     description = "A mopidy webclient based on the Spotify webbased interface";
     license = licenses.gpl3;
     maintainers = [ maintainers.Gonzih ];
diff --git a/pkgs/applications/audio/mopidy/spotify.nix b/pkgs/applications/audio/mopidy/spotify.nix
index a01bf6c80d3..0793ae01c29 100644
--- a/pkgs/applications/audio/mopidy/spotify.nix
+++ b/pkgs/applications/audio/mopidy/spotify.nix
@@ -14,7 +14,7 @@ python3Packages.buildPythonApplication rec {
   doCheck = false;
 
   meta = with stdenv.lib; {
-    homepage = https://www.mopidy.com/;
+    homepage = "https://www.mopidy.com/";
     description = "Mopidy extension for playing music from Spotify";
     license = licenses.asl20;
     maintainers = [];
diff --git a/pkgs/applications/audio/mp3blaster/default.nix b/pkgs/applications/audio/mp3blaster/default.nix
index 727133be78d..2943a31454a 100644
--- a/pkgs/applications/audio/mp3blaster/default.nix
+++ b/pkgs/applications/audio/mp3blaster/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An audio player for the text console";
-    homepage = http://www.mp3blaster.org/;
+    homepage = "http://www.mp3blaster.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ earldouglas ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/mp3gain/default.nix b/pkgs/applications/audio/mp3gain/default.nix
index 233aebfa147..f2b4564c7cc 100644
--- a/pkgs/applications/audio/mp3gain/default.nix
+++ b/pkgs/applications/audio/mp3gain/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Lossless mp3 normalizer with statistical analysis";
-    homepage = http://mp3gain.sourceforge.net/;
+    homepage = "http://mp3gain.sourceforge.net/";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/audio/mp3info/default.nix b/pkgs/applications/audio/mp3info/default.nix
index 6700f21fc8c..69ca271d27d 100644
--- a/pkgs/applications/audio/mp3info/default.nix
+++ b/pkgs/applications/audio/mp3info/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
          other attributes in a pre-defined or user-specifiable output format.
       '';
 
-    homepage = http://www.ibiblio.org/mp3info/;
+    homepage = "http://www.ibiblio.org/mp3info/";
 
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/applications/audio/mp3splt/default.nix b/pkgs/applications/audio/mp3splt/default.nix
index f067c5af6df..323854575ea 100644
--- a/pkgs/applications/audio/mp3splt/default.nix
+++ b/pkgs/applications/audio/mp3splt/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Utility to split mp3, ogg vorbis and FLAC files without decoding";
-    homepage = https://sourceforge.net/projects/mp3splt/;
+    homepage = "https://sourceforge.net/projects/mp3splt/";
     license = licenses.gpl2;
     maintainers = [ maintainers.bosu ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/mp3val/default.nix b/pkgs/applications/audio/mp3val/default.nix
index 6c35779f6c4..636fb7d9b9a 100644
--- a/pkgs/applications/audio/mp3val/default.nix
+++ b/pkgs/applications/audio/mp3val/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
       also other MPEG versions and layers. The tool is also aware of the most
       common types of tags (ID3v1, ID3v2, APEv2).
     '';
-    homepage = http://mp3val.sourceforge.net/index.shtml;
+    homepage = "http://mp3val.sourceforge.net/index.shtml";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.devhell ];
diff --git a/pkgs/applications/audio/mpc/default.nix b/pkgs/applications/audio/mpc/default.nix
index 1e8d73ce560..a226b720df9 100644
--- a/pkgs/applications/audio/mpc/default.nix
+++ b/pkgs/applications/audio/mpc/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A minimalist command line interface to MPD";
-    homepage = https://www.musicpd.org/clients/mpc/;
+    homepage = "https://www.musicpd.org/clients/mpc/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ algorith ];
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/audio/mpc123/default.nix b/pkgs/applications/audio/mpc123/default.nix
index f024e5a6a1d..ef5cb169a2c 100644
--- a/pkgs/applications/audio/mpc123/default.nix
+++ b/pkgs/applications/audio/mpc123/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = http://mpc123.sourceforge.net/;
+    homepage = "http://mpc123.sourceforge.net/";
 
     description = "A Musepack (.mpc) audio player";
 
diff --git a/pkgs/applications/audio/mpg123/default.nix b/pkgs/applications/audio/mpg123/default.nix
index 6c4b9a43176..53e66e580da 100644
--- a/pkgs/applications/audio/mpg123/default.nix
+++ b/pkgs/applications/audio/mpg123/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Fast console MPEG Audio Player and decoder library";
-    homepage = http://mpg123.org;
+    homepage = "http://mpg123.org";
     license = stdenv.lib.licenses.lgpl21;
     maintainers = [ stdenv.lib.maintainers.ftrvxmtrx ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/audio/mpg321/default.nix b/pkgs/applications/audio/mpg321/default.nix
index 08fe9b4f9af..63b8e2d867a 100644
--- a/pkgs/applications/audio/mpg321/default.nix
+++ b/pkgs/applications/audio/mpg321/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Command-line MP3 player";
-    homepage = http://mpg321.sourceforge.net/;
+    homepage = "http://mpg321.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = [ maintainers.rycee ];
     platforms = platforms.gnu ++ platforms.linux;
diff --git a/pkgs/applications/audio/mup/default.nix b/pkgs/applications/audio/mup/default.nix
index 43098be12e3..347cddca856 100644
--- a/pkgs/applications/audio/mup/default.nix
+++ b/pkgs/applications/audio/mup/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = false; # Undeclared dependencies + https://stackoverflow.com/a/19822767/1687334 for prolog.ps.
 
   meta = with stdenv.lib; {
-    homepage = http://www.arkkra.com/;
+    homepage = "http://www.arkkra.com/";
     description = "Music typesetting program (ASCII to PostScript and MIDI)";
     license = licenses.bsd3;
     maintainers = with maintainers; [ orivej ];
diff --git a/pkgs/applications/audio/musescore/darwin.nix b/pkgs/applications/audio/musescore/darwin.nix
index 8b08aed62b8..8870a144c9f 100644
--- a/pkgs/applications/audio/musescore/darwin.nix
+++ b/pkgs/applications/audio/musescore/darwin.nix
@@ -25,10 +25,10 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software";
-    homepage = https://musescore.org/;
+    homepage = "https://musescore.org/";
     license = licenses.gpl2;
     platforms = platforms.darwin;
     maintainers = with maintainers; [ yurrriq ];
-    repositories.git = https://github.com/musescore/MuseScore;
+    repositories.git = "https://github.com/musescore/MuseScore";
   };
 }
diff --git a/pkgs/applications/audio/musescore/default.nix b/pkgs/applications/audio/musescore/default.nix
index 7ef6328c02c..bd4b2db380a 100644
--- a/pkgs/applications/audio/musescore/default.nix
+++ b/pkgs/applications/audio/musescore/default.nix
@@ -31,10 +31,10 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software";
-    homepage = https://musescore.org/;
+    homepage = "https://musescore.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ vandenoever ];
     platforms = platforms.linux;
-    repositories.git = https://github.com/musescore/MuseScore;
+    repositories.git = "https://github.com/musescore/MuseScore";
   };
 }
diff --git a/pkgs/applications/audio/musly/default.nix b/pkgs/applications/audio/musly/default.nix
index e7a9e22c2d6..b1e8822cdcf 100644
--- a/pkgs/applications/audio/musly/default.nix
+++ b/pkgs/applications/audio/musly/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
   '' else "";
 
   meta = with stdenv.lib; {
-    homepage = https://www.musly.org;
+    homepage = "https://www.musly.org";
     description = "A fast and high-quality audio music similarity library written in C/C++";
     longDescription = ''
       Musly analyzes the the audio signal of music pieces to estimate their similarity.
diff --git a/pkgs/applications/audio/ncmpc/default.nix b/pkgs/applications/audio/ncmpc/default.nix
index c95177cd382..c08e4f7f4ff 100644
--- a/pkgs/applications/audio/ncmpc/default.nix
+++ b/pkgs/applications/audio/ncmpc/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Curses-based interface for MPD (music player daemon)";
-    homepage    = https://www.musicpd.org/clients/ncmpc/;
+    homepage    = "https://www.musicpd.org/clients/ncmpc/";
     license     = licenses.gpl2Plus;
     platforms   = platforms.all;
     maintainers = with maintainers; [ fpletz ];
diff --git a/pkgs/applications/audio/ncmpcpp/default.nix b/pkgs/applications/audio/ncmpcpp/default.nix
index 2ba36b4a50d..f8adc522fcb 100644
--- a/pkgs/applications/audio/ncmpcpp/default.nix
+++ b/pkgs/applications/audio/ncmpcpp/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A featureful ncurses based MPD client inspired by ncmpc";
-    homepage    = https://ncmpcpp.rybczak.net/;
+    homepage    = "https://ncmpcpp.rybczak.net/";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ jfrankenau koral lovek323 ];
     platforms   = platforms.all;
diff --git a/pkgs/applications/audio/ncpamixer/default.nix b/pkgs/applications/audio/ncpamixer/default.nix
index 53ed9b3297c..32d8df2f048 100644
--- a/pkgs/applications/audio/ncpamixer/default.nix
+++ b/pkgs/applications/audio/ncpamixer/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An ncurses mixer for PulseAudio inspired by pavucontrol";
-    homepage = https://github.com/fulhax/ncpamixer;
+    homepage = "https://github.com/fulhax/ncpamixer";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ StijnDW ];
diff --git a/pkgs/applications/audio/netease-cloud-music/default.nix b/pkgs/applications/audio/netease-cloud-music/default.nix
index 15afe233b3a..c4cc291d026 100644
--- a/pkgs/applications/audio/netease-cloud-music/default.nix
+++ b/pkgs/applications/audio/netease-cloud-music/default.nix
@@ -73,7 +73,7 @@ in stdenv.mkDerivation rec {
 
   meta = {
     description = "Client for Netease Cloud Music service";
-    homepage = https://music.163.com;
+    homepage = "https://music.163.com";
     platforms = [ "i686-linux" "x86_64-linux" ];
     maintainers = [ stdenv.lib.maintainers.mlatus ];
     license = stdenv.lib.licenses.unfreeRedistributable;
diff --git a/pkgs/applications/audio/noise-repellent/default.nix b/pkgs/applications/audio/noise-repellent/default.nix
index bc5b35396e2..3b2f233c6af 100644
--- a/pkgs/applications/audio/noise-repellent/default.nix
+++ b/pkgs/applications/audio/noise-repellent/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An lv2 plugin for broadband noise reduction";
-    homepage    = https://github.com/lucianodato/noise-repellent;
+    homepage    = "https://github.com/lucianodato/noise-repellent";
     license     = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
     platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "i686-darwin"  ];
diff --git a/pkgs/applications/audio/non/default.nix b/pkgs/applications/audio/non/default.nix
index 651db50f0a7..9b4b147c230 100644
--- a/pkgs/applications/audio/non/default.nix
+++ b/pkgs/applications/audio/non/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Lightweight and lightning fast modular Digital Audio Workstation";
-    homepage = http://non.tuxfamily.org;
+    homepage = "http://non.tuxfamily.org";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/nootka/default.nix b/pkgs/applications/audio/nootka/default.nix
index 4f7b1e7e30f..b0d4843aecd 100644
--- a/pkgs/applications/audio/nootka/default.nix
+++ b/pkgs/applications/audio/nootka/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Application for practicing playing musical scores and ear training";
-    homepage = https://nootka.sourceforge.io/;
+    homepage = "https://nootka.sourceforge.io/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/nootka/unstable.nix b/pkgs/applications/audio/nootka/unstable.nix
index d76fd0835ca..16df55c1dfb 100644
--- a/pkgs/applications/audio/nootka/unstable.nix
+++ b/pkgs/applications/audio/nootka/unstable.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Application for practicing playing musical scores and ear training";
-    homepage = https://nootka.sourceforge.io/;
+    homepage = "https://nootka.sourceforge.io/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/normalize/default.nix b/pkgs/applications/audio/normalize/default.nix
index 490ecc967bb..0aa26411693 100644
--- a/pkgs/applications/audio/normalize/default.nix
+++ b/pkgs/applications/audio/normalize/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libmad ];
 
   meta = with stdenv.lib; {
-    homepage = https://www.nongnu.org/normalize/;
+    homepage = "https://www.nongnu.org/normalize/";
     description = "Audio file normalizer";
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/applications/audio/nova-filters/default.nix b/pkgs/applications/audio/nova-filters/default.nix
index 0bb970500bd..bc5a3efc59a 100644
--- a/pkgs/applications/audio/nova-filters/default.nix
+++ b/pkgs/applications/audio/nova-filters/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "nova-filters";
 
   src = fetchurl {
-    url = https://klingt.org/~tim/nova-filters/nova-filters_0.2-2.tar.gz;
+    url = "https://klingt.org/~tim/nova-filters/nova-filters_0.2-2.tar.gz";
     sha256 = "16064vvl2w5lz4xi3lyjk4xx7fphwsxc14ajykvndiz170q32s6i";
   };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "LADSPA plugins based on filters of nova";
-    homepage = http://klingt.org/~tim/nova-filters/;
+    homepage = "http://klingt.org/~tim/nova-filters/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/openmpt123/default.nix b/pkgs/applications/audio/openmpt123/default.nix
index 24ac52e7e31..aebc7dc7baa 100644
--- a/pkgs/applications/audio/openmpt123/default.nix
+++ b/pkgs/applications/audio/openmpt123/default.nix
@@ -23,7 +23,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A cross-platform command-line based module file player";
-    homepage = https://lib.openmpt.org/libopenmpt/;
+    homepage = "https://lib.openmpt.org/libopenmpt/";
     license = licenses.bsd3;
     maintainers = with maintainers; [ gnidorah ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/opus-tools/default.nix b/pkgs/applications/audio/opus-tools/default.nix
index 69fa75d85f4..9d95c362d92 100644
--- a/pkgs/applications/audio/opus-tools/default.nix
+++ b/pkgs/applications/audio/opus-tools/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Tools to work with opus encoded audio streams";
-    homepage = http://www.opus-codec.org/;
+    homepage = "http://www.opus-codec.org/";
     license = stdenv.lib.licenses.bsd2;
     maintainers = with stdenv.lib.maintainers; [ ];
     platforms = with stdenv.lib.platforms; unix;
diff --git a/pkgs/applications/audio/opusfile/default.nix b/pkgs/applications/audio/opusfile/default.nix
index 25636863793..c09b3f415d8 100644
--- a/pkgs/applications/audio/opusfile/default.nix
+++ b/pkgs/applications/audio/opusfile/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "High-level API for decoding and seeking in .opus files";
-    homepage = http://www.opus-codec.org/;
+    homepage = "http://www.opus-codec.org/";
     license = licenses.bsd3;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ ];
diff --git a/pkgs/applications/audio/pamix/default.nix b/pkgs/applications/audio/pamix/default.nix
index 2507f08e9e5..cc5d84d9471 100644
--- a/pkgs/applications/audio/pamix/default.nix
+++ b/pkgs/applications/audio/pamix/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Pulseaudio terminal mixer";
-    homepage    = https://github.com/patroclos/PAmix;
+    homepage    = "https://github.com/patroclos/PAmix";
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ ericsagnes ];
diff --git a/pkgs/applications/audio/pamixer/default.nix b/pkgs/applications/audio/pamixer/default.nix
index 7c452096785..71d85248599 100644
--- a/pkgs/applications/audio/pamixer/default.nix
+++ b/pkgs/applications/audio/pamixer/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
         - Increase / Decrease the volume for a device
         - Mute or unmute a device
     '';
-    homepage = https://github.com/cdemoulins/pamixer;
+    homepage = "https://github.com/cdemoulins/pamixer";
     license = licenses.gpl3;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/paprefs/default.nix b/pkgs/applications/audio/paprefs/default.nix
index 9c59b5466c7..b5ec1206ce3 100644
--- a/pkgs/applications/audio/paprefs/default.nix
+++ b/pkgs/applications/audio/paprefs/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
       dialog for the PulseAudio sound server.
     '';
 
-    homepage = http://freedesktop.org/software/pulseaudio/paprefs/;
+    homepage = "http://freedesktop.org/software/pulseaudio/paprefs/";
 
     license = licenses.gpl2Plus;
 
diff --git a/pkgs/applications/audio/patchage/default.nix b/pkgs/applications/audio/patchage/default.nix
index e7c4cab9af1..ac679d6dd94 100644
--- a/pkgs/applications/audio/patchage/default.nix
+++ b/pkgs/applications/audio/patchage/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation {
   pname = "patchage";
   version = "1.0.1";
   src = fetchsvn {
-    url = http://svn.drobilla.net/lad/trunk/patchage/;
+    url = "http://svn.drobilla.net/lad/trunk/patchage/";
     rev = "5821";
     sha256 = "1ar64l0sg468qzxj7i6ppgfqjpm92awcp5lzskamrf3ln17lrgj7";
   };
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Modular patch bay for Jack and ALSA systems";
-    homepage = http://non.tuxfamily.org;
+    homepage = "http://non.tuxfamily.org";
     license = stdenv.lib.licenses.lgpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/paulstretch/default.nix b/pkgs/applications/audio/paulstretch/default.nix
index b9a3f39affb..f6cee7672f7 100644
--- a/pkgs/applications/audio/paulstretch/default.nix
+++ b/pkgs/applications/audio/paulstretch/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation {
       special effects by "spectral smoothing" the sounds.
       It can transform any sound/music to a texture.
     '';
-    homepage = http://hypermammut.sourceforge.net/paulstretch/;
+    homepage = "http://hypermammut.sourceforge.net/paulstretch/";
     platforms = platforms.linux;
     license = licenses.gpl2;
   };
diff --git a/pkgs/applications/audio/pavucontrol/default.nix b/pkgs/applications/audio/pavucontrol/default.nix
index d07cf8a476b..301e44168d3 100644
--- a/pkgs/applications/audio/pavucontrol/default.nix
+++ b/pkgs/applications/audio/pavucontrol/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       easily control the volume of all clients, sinks, etc.
     '';
 
-    homepage = http://freedesktop.org/software/pulseaudio/pavucontrol/;
+    homepage = "http://freedesktop.org/software/pulseaudio/pavucontrol/";
 
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/applications/audio/pd-plugins/cyclone/default.nix b/pkgs/applications/audio/pd-plugins/cyclone/default.nix
index 6440f6e787f..56f1ec518de 100644
--- a/pkgs/applications/audio/pd-plugins/cyclone/default.nix
+++ b/pkgs/applications/audio/pd-plugins/cyclone/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A library of PureData classes, bringing some level of compatibility between Max/MSP and Pd environments";
-    homepage = http://puredata.info/downloads/cyclone;
+    homepage = "http://puredata.info/downloads/cyclone";
     license = stdenv.lib.licenses.tcltk;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/helmholtz/default.nix b/pkgs/applications/audio/pd-plugins/helmholtz/default.nix
index 6c7a4b03ef5..be5a385d308 100644
--- a/pkgs/applications/audio/pd-plugins/helmholtz/default.nix
+++ b/pkgs/applications/audio/pd-plugins/helmholtz/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Time domain pitch tracker for Pure Data";
-    homepage = http://www.katjaas.nl/helmholtz/helmholtz.html;
+    homepage = "http://www.katjaas.nl/helmholtz/helmholtz.html";
     license = stdenv.lib.licenses.bsd3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/maxlib/default.nix b/pkgs/applications/audio/pd-plugins/maxlib/default.nix
index 21ba375200b..aec793c4ee8 100644
--- a/pkgs/applications/audio/pd-plugins/maxlib/default.nix
+++ b/pkgs/applications/audio/pd-plugins/maxlib/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A library of non-tilde externals for puredata, by Miller Puckette";
-    homepage = http://puredata.info/downloads/maxlib;
+    homepage = "http://puredata.info/downloads/maxlib";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/mrpeach/default.nix b/pkgs/applications/audio/pd-plugins/mrpeach/default.nix
index 028a4667cb2..cefee430ad5 100644
--- a/pkgs/applications/audio/pd-plugins/mrpeach/default.nix
+++ b/pkgs/applications/audio/pd-plugins/mrpeach/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A collection of Pd objectclasses for OSC-messages";
-    homepage = http://puredata.info/downloads/osc;
+    homepage = "http://puredata.info/downloads/osc";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/puremapping/default.nix b/pkgs/applications/audio/pd-plugins/puremapping/default.nix
index c214d3fcf40..7a5014664d5 100644
--- a/pkgs/applications/audio/pd-plugins/puremapping/default.nix
+++ b/pkgs/applications/audio/pd-plugins/puremapping/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Set of externals to facilitate the use of sensors within Pure Data and to create complex relations between input and output of a dynamic system";
-    homepage = http://www.chnry.net/ch/?090-Pure-Mapping&lang=en;
+    homepage = "http://www.chnry.net/ch/?090-Pure-Mapping&lang=en";
     license = stdenv.lib.licenses.gpl1;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/timbreid/default.nix b/pkgs/applications/audio/pd-plugins/timbreid/default.nix
index fa9660fbbf6..e68610a0226 100644
--- a/pkgs/applications/audio/pd-plugins/timbreid/default.nix
+++ b/pkgs/applications/audio/pd-plugins/timbreid/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A collection of audio feature analysis externals for puredata";
-    homepage = http://williambrent.conflations.com/pages/research.html;
+    homepage = "http://williambrent.conflations.com/pages/research.html";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/pd-plugins/zexy/default.nix b/pkgs/applications/audio/pd-plugins/zexy/default.nix
index cc307417c06..4f826908136 100644
--- a/pkgs/applications/audio/pd-plugins/zexy/default.nix
+++ b/pkgs/applications/audio/pd-plugins/zexy/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The swiss army knife for puredata";
-    homepage = http://puredata.info/downloads/zexy;
+    homepage = "http://puredata.info/downloads/zexy";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/petrifoo/default.nix b/pkgs/applications/audio/petrifoo/default.nix
index 8bbeffb1f7a..322eba2b952 100644
--- a/pkgs/applications/audio/petrifoo/default.nix
+++ b/pkgs/applications/audio/petrifoo/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation  rec {
   meta = with stdenv.lib; {
     description = "MIDI controllable audio sampler";
     longDescription = "a fork of Specimen";
-    homepage = http://petri-foo.sourceforge.net;
+    homepage = "http://petri-foo.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/pianobooster/default.nix b/pkgs/applications/audio/pianobooster/default.nix
index bbf64a4325b..4832fce1e96 100644
--- a/pkgs/applications/audio/pianobooster/default.nix
+++ b/pkgs/applications/audio/pianobooster/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A MIDI file player that teaches you how to play the piano";
-    homepage = https://github.com/captnfab/PianoBooster;
+    homepage = "https://github.com/captnfab/PianoBooster";
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ goibhniu orivej ];
diff --git a/pkgs/applications/audio/pithos/default.nix b/pkgs/applications/audio/pithos/default.nix
index 20a6e928cef..6c3ffebc8c9 100644
--- a/pkgs/applications/audio/pithos/default.nix
+++ b/pkgs/applications/audio/pithos/default.nix
@@ -29,7 +29,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Pandora Internet Radio player for GNOME";
-    homepage = https://pithos.github.io/;
+    homepage = "https://pithos.github.io/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ obadz ];
   };
diff --git a/pkgs/applications/audio/playbar2/default.nix b/pkgs/applications/audio/playbar2/default.nix
index 8c21dc8f2ad..15385e91927 100644
--- a/pkgs/applications/audio/playbar2/default.nix
+++ b/pkgs/applications/audio/playbar2/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Mpris2 Client for Plasma5";
-    homepage = https://github.com/audoban/PlayBar2;
+    homepage = "https://github.com/audoban/PlayBar2";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pjones ];
diff --git a/pkgs/applications/audio/plugin-torture/default.nix b/pkgs/applications/audio/plugin-torture/default.nix
index f444ad6cb32..3c852cf450e 100644
--- a/pkgs/applications/audio/plugin-torture/default.nix
+++ b/pkgs/applications/audio/plugin-torture/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/cth103/plugin-torture;
+    homepage = "https://github.com/cth103/plugin-torture";
     description = "A tool to test LADSPA and LV2 plugins";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/pmidi/default.nix b/pkgs/applications/audio/pmidi/default.nix
index f9b3fbae213..0da86ca9bd1 100644
--- a/pkgs/applications/audio/pmidi/default.nix
+++ b/pkgs/applications/audio/pmidi/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   buildInputs = [ alsaLib ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.parabola.me.uk/alsa/pmidi.html;
+    homepage = "http://www.parabola.me.uk/alsa/pmidi.html";
     description = "A straightforward command line program to play midi files through the ALSA sequencer";
     maintainers = with maintainers; [ lheckemann ];
     license = licenses.gpl2;
diff --git a/pkgs/applications/audio/ponymix/default.nix b/pkgs/applications/audio/ponymix/default.nix
index 6d168ec5661..6c289a97384 100644
--- a/pkgs/applications/audio/ponymix/default.nix
+++ b/pkgs/applications/audio/ponymix/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "CLI PulseAudio Volume Control";
-    homepage = https://github.com/falconindy/ponymix;
+    homepage = "https://github.com/falconindy/ponymix";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ ericsagnes ];
diff --git a/pkgs/applications/audio/praat/default.nix b/pkgs/applications/audio/praat/default.nix
index 9414f4211d7..2fb8e30a64d 100644
--- a/pkgs/applications/audio/praat/default.nix
+++ b/pkgs/applications/audio/praat/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Doing phonetics by computer";
-    homepage = http://www.fon.hum.uva.nl/praat/;
+    homepage = "http://www.fon.hum.uva.nl/praat/";
     license = stdenv.lib.licenses.gpl2Plus; # Has some 3rd-party code in it though
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/audio/projectm/default.nix b/pkgs/applications/audio/projectm/default.nix
index 347774010ae..205a3ad287e 100644
--- a/pkgs/applications/audio/projectm/default.nix
+++ b/pkgs/applications/audio/projectm/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Music Visualizer";
-    homepage = http://projectm.sourceforge.net/;
+    homepage = "http://projectm.sourceforge.net/";
     license = stdenv.lib.licenses.lgpl21Plus;
     platforms = stdenv.lib.platforms.linux;
   };
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
   };
 
   patch_gcc6 = fetchpatch {
-    url = https://raw.githubusercontent.com/gentoo/gentoo/45abd63abc6644b6e177c057b5b42d894dbf8e29/media-libs/libprojectm/files/libprojectm-2.1.0-fix-c++14.patch;
+    url = "https://raw.githubusercontent.com/gentoo/gentoo/45abd63abc6644b6e177c057b5b42d894dbf8e29/media-libs/libprojectm/files/libprojectm-2.1.0-fix-c++14.patch";
     sha256 = "1i50scxv1jlqvb3jm3sql89a7wqckxhlpvnhz20vvmm1kii6lrsn";
   };
 
diff --git a/pkgs/applications/audio/puddletag/default.nix b/pkgs/applications/audio/puddletag/default.nix
index 3a6cd298557..a0813fa0c80 100644
--- a/pkgs/applications/audio/puddletag/default.nix
+++ b/pkgs/applications/audio/puddletag/default.nix
@@ -29,7 +29,7 @@ python2Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "An audio tag editor similar to the Windows program, Mp3tag";
-    homepage    = https://docs.puddletag.net;
+    homepage    = "https://docs.puddletag.net";
     license     = licenses.gpl3;
     maintainers = with maintainers; [ peterhoeg ];
     platforms   = platforms.linux;
diff --git a/pkgs/applications/audio/pulseaudio-ctl/default.nix b/pkgs/applications/audio/pulseaudio-ctl/default.nix
index 6b7d242e1f6..125dafc132e 100644
--- a/pkgs/applications/audio/pulseaudio-ctl/default.nix
+++ b/pkgs/applications/audio/pulseaudio-ctl/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Control pulseaudio volume from the shell or mapped to keyboard shortcuts. No need for alsa-utils.";
-    homepage = https://bbs.archlinux.org/viewtopic.php?id=124513;
+    homepage = "https://bbs.archlinux.org/viewtopic.php?id=124513";
     license = licenses.mit;
     maintainers = with maintainers; [ peterhoeg ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix b/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix
index 328bd8b0b04..efe39aa1600 100644
--- a/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix
+++ b/pkgs/applications/audio/pulseaudio-dlna/zeroconf.nix
@@ -23,7 +23,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "A pure python implementation of multicast DNS service discovery";
-    homepage = https://github.com/jstasiak/python-zeroconf;
+    homepage = "https://github.com/jstasiak/python-zeroconf";
     license = licenses.lgpl21;
     maintainers = [ ];
   };
diff --git a/pkgs/applications/audio/pulseaudio-modules-bt/default.nix b/pkgs/applications/audio/pulseaudio-modules-bt/default.nix
index b8082c12c64..2511cf0f20a 100644
--- a/pkgs/applications/audio/pulseaudio-modules-bt/default.nix
+++ b/pkgs/applications/audio/pulseaudio-modules-bt/default.nix
@@ -75,7 +75,7 @@ in stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/EHfive/pulseaudio-modules-bt;
+    homepage = "https://github.com/EHfive/pulseaudio-modules-bt";
     description = "LDAC, aptX, aptX HD, AAC codecs (A2DP Audio) support for Linux PulseAudio";
     platforms = platforms.linux;
     license = licenses.mit;
diff --git a/pkgs/applications/audio/pulseeffects/default.nix b/pkgs/applications/audio/pulseeffects/default.nix
index 82dd0223bc8..2972849a2d4 100644
--- a/pkgs/applications/audio/pulseeffects/default.nix
+++ b/pkgs/applications/audio/pulseeffects/default.nix
@@ -101,7 +101,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Limiter, compressor, reverberation, equalizer and auto volume effects for Pulseaudio applications";
-    homepage = https://github.com/wwmm/pulseeffects;
+    homepage = "https://github.com/wwmm/pulseeffects";
     license = licenses.gpl3;
     maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/puredata/default.nix b/pkgs/applications/audio/puredata/default.nix
index 5886a465409..9880a65d0ca 100644
--- a/pkgs/applications/audio/puredata/default.nix
+++ b/pkgs/applications/audio/puredata/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation  rec {
   meta = with stdenv.lib; {
     description = ''A real-time graphical programming environment for
                     audio, video, and graphical processing'';
-    homepage = http://puredata.info;
+    homepage = "http://puredata.info";
     license = licenses.bsd3;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/qjackctl/default.nix b/pkgs/applications/audio/qjackctl/default.nix
index 753f6fe8206..54bbbf05377 100644
--- a/pkgs/applications/audio/qjackctl/default.nix
+++ b/pkgs/applications/audio/qjackctl/default.nix
@@ -26,7 +26,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A Qt application to control the JACK sound server daemon";
-    homepage = http://qjackctl.sourceforge.net/;
+    homepage = "http://qjackctl.sourceforge.net/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/qmidinet/default.nix b/pkgs/applications/audio/qmidinet/default.nix
index 2b79818543f..10cbcb5d5b1 100644
--- a/pkgs/applications/audio/qmidinet/default.nix
+++ b/pkgs/applications/audio/qmidinet/default.nix
@@ -17,7 +17,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "A MIDI network gateway application that sends and receives MIDI data (ALSA Sequencer and/or JACK MIDI) over the network";
-    homepage = http://qmidinet.sourceforge.net/;
+    homepage = "http://qmidinet.sourceforge.net/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/qmmp/default.nix b/pkgs/applications/audio/qmmp/default.nix
index 6cc731710b7..fe7b9f8ba66 100644
--- a/pkgs/applications/audio/qmmp/default.nix
+++ b/pkgs/applications/audio/qmmp/default.nix
@@ -59,6 +59,6 @@ mkDerivation rec {
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
-    repositories.svn = http://qmmp.googlecode.com/svn/;
+    repositories.svn = "http://qmmp.googlecode.com/svn/";
   };
 }
diff --git a/pkgs/applications/audio/qsampler/default.nix b/pkgs/applications/audio/qsampler/default.nix
index 33411002c23..1f65b374838 100644
--- a/pkgs/applications/audio/qsampler/default.nix
+++ b/pkgs/applications/audio/qsampler/default.nix
@@ -18,7 +18,7 @@ mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.linuxsampler.org;
+    homepage = "http://www.linuxsampler.org";
     description = "Graphical frontend to LinuxSampler";
     license = licenses.gpl2;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/qsynth/default.nix b/pkgs/applications/audio/qsynth/default.nix
index 29f5704c730..8235a2835fb 100644
--- a/pkgs/applications/audio/qsynth/default.nix
+++ b/pkgs/applications/audio/qsynth/default.nix
@@ -19,7 +19,7 @@ mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Fluidsynth GUI";
-    homepage = https://sourceforge.net/projects/qsynth;
+    homepage = "https://sourceforge.net/projects/qsynth";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/qtractor/default.nix b/pkgs/applications/audio/qtractor/default.nix
index 8cb9f8dccb8..523a743ef3b 100644
--- a/pkgs/applications/audio/qtractor/default.nix
+++ b/pkgs/applications/audio/qtractor/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Audio/MIDI multi-track sequencer";
-    homepage = http://qtractor.sourceforge.net;
+    homepage = "http://qtractor.sourceforge.net";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/qtscrobbler/default.nix b/pkgs/applications/audio/qtscrobbler/default.nix
index 68e8e6402ac..5b84989a7c4 100644
--- a/pkgs/applications/audio/qtscrobbler/default.nix
+++ b/pkgs/applications/audio/qtscrobbler/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
       It is able to gather this information from Apple iPods or DAPs running the Rockbox replacement firmware.
     '';
 
-    homepage = http://qtscrob.sourceforge.net;
+    homepage = "http://qtscrob.sourceforge.net";
     license = licenses.gpl2;
     maintainers = [ maintainers.vanzef ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/quodlibet/default.nix b/pkgs/applications/audio/quodlibet/default.nix
index 597cf68f4d0..704e20cc8c5 100644
--- a/pkgs/applications/audio/quodlibet/default.nix
+++ b/pkgs/applications/audio/quodlibet/default.nix
@@ -74,6 +74,6 @@ python3.pkgs.buildPythonApplication rec {
     '';
 
     maintainers = with maintainers; [ coroa sauyon ];
-    homepage = https://quodlibet.readthedocs.io/en/latest/;
+    homepage = "https://quodlibet.readthedocs.io/en/latest/";
   };
 }
diff --git a/pkgs/applications/audio/radiotray-ng/default.nix b/pkgs/applications/audio/radiotray-ng/default.nix
index a64e407b39b..014906594a7 100644
--- a/pkgs/applications/audio/radiotray-ng/default.nix
+++ b/pkgs/applications/audio/radiotray-ng/default.nix
@@ -92,7 +92,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An internet radio player for linux";
-    homepage = https://github.com/ebruck/radiotray-ng;
+    homepage = "https://github.com/ebruck/radiotray-ng";
     license = licenses.gpl3;
     maintainers = with maintainers; [ dtzWill ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/rakarrack/default.nix b/pkgs/applications/audio/rakarrack/default.nix
index 36302458a75..4548f9ba624 100644
--- a/pkgs/applications/audio/rakarrack/default.nix
+++ b/pkgs/applications/audio/rakarrack/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Multi-effects processor emulating a guitar effects pedalboard";
-    homepage = http://rakarrack.sourceforge.net;
+    homepage = "http://rakarrack.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/reaper/default.nix b/pkgs/applications/audio/reaper/default.nix
index 236c42b5293..2e63a3e8c7c 100644
--- a/pkgs/applications/audio/reaper/default.nix
+++ b/pkgs/applications/audio/reaper/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Digital audio workstation";
-    homepage = https://www.reaper.fm/;
+    homepage = "https://www.reaper.fm/";
     license = licenses.unfree;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/audio/renoise/default.nix b/pkgs/applications/audio/renoise/default.nix
index 2fb1943e0e5..1cbd5b3afa2 100644
--- a/pkgs/applications/audio/renoise/default.nix
+++ b/pkgs/applications/audio/renoise/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Modern tracker-based DAW";
-    homepage = https://www.renoise.com/;
+    homepage = "https://www.renoise.com/";
     license = licenses.unfree;
     maintainers = [];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/applications/audio/rhvoice/default.nix b/pkgs/applications/audio/rhvoice/default.nix
index 59a8b6ec8c4..7a0a8a59a08 100644
--- a/pkgs/applications/audio/rhvoice/default.nix
+++ b/pkgs/applications/audio/rhvoice/default.nix
@@ -33,7 +33,7 @@ in stdenv.mkDerivation {
 
   meta = {
     description = "A free and open source speech synthesizer for Russian language and others";
-    homepage = https://github.com/Olga-Yakovleva/RHVoice/wiki;
+    homepage = "https://github.com/Olga-Yakovleva/RHVoice/wiki";
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ berce ];
     platforms = with lib.platforms; all;
diff --git a/pkgs/applications/audio/rhythmbox/default.nix b/pkgs/applications/audio/rhythmbox/default.nix
index b6bff79fa03..79560451e54 100644
--- a/pkgs/applications/audio/rhythmbox/default.nix
+++ b/pkgs/applications/audio/rhythmbox/default.nix
@@ -58,7 +58,7 @@ in stdenv.mkDerivation rec {
   };
 
   meta = with stdenv.lib; {
-    homepage = https://wiki.gnome.org/Apps/Rhythmbox;
+    homepage = "https://wiki.gnome.org/Apps/Rhythmbox";
     description = "A music playing application for GNOME";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/rkrlv2/default.nix b/pkgs/applications/audio/rkrlv2/default.nix
index 0ff23102e75..59979c41083 100644
--- a/pkgs/applications/audio/rkrlv2/default.nix
+++ b/pkgs/applications/audio/rkrlv2/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Rakarrak effects ported to LV2";
-    homepage = https://github.com/ssj71/rkrlv2;
+    homepage = "https://github.com/ssj71/rkrlv2";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.joelmo ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/rosegarden/default.nix b/pkgs/applications/audio/rosegarden/default.nix
index 3d9342f16ca..921c8fff67a 100644
--- a/pkgs/applications/audio/rosegarden/default.nix
+++ b/pkgs/applications/audio/rosegarden/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation (rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = https://www.rosegardenmusic.com/;
+    homepage = "https://www.rosegardenmusic.com/";
     description = "Music composition and editing environment";
     longDescription = ''
       Rosegarden is a music composition and editing environment based around
diff --git a/pkgs/applications/audio/schismtracker/default.nix b/pkgs/applications/audio/schismtracker/default.nix
index f902b2dd41b..b50dd78ff1a 100644
--- a/pkgs/applications/audio/schismtracker/default.nix
+++ b/pkgs/applications/audio/schismtracker/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Music tracker application, free reimplementation of Impulse Tracker";
-    homepage = http://schismtracker.org/;
+    homepage = "http://schismtracker.org/";
     license = stdenv.lib.licenses.gpl2;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = [ stdenv.lib.maintainers.ftrvxmtrx ];
diff --git a/pkgs/applications/audio/seq24/default.nix b/pkgs/applications/audio/seq24/default.nix
index 9bab024f021..c8347d70b1d 100644
--- a/pkgs/applications/audio/seq24/default.nix
+++ b/pkgs/applications/audio/seq24/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Minimal loop based midi sequencer";
-    homepage = http://www.filter24.org/seq24;
+    homepage = "http://www.filter24.org/seq24";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ goibhniu ];
diff --git a/pkgs/applications/audio/shntool/default.nix b/pkgs/applications/audio/shntool/default.nix
index e3bfc60a40a..de18f3c2ce8 100644
--- a/pkgs/applications/audio/shntool/default.nix
+++ b/pkgs/applications/audio/shntool/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "shntool";
 
   src = fetchurl {
-    url = http://www.etree.org/shnutils/shntool/dist/src/shntool-3.0.10.tar.gz;
+    url = "http://www.etree.org/shnutils/shntool/dist/src/shntool-3.0.10.tar.gz";
     sha256 = "00i1rbjaaws3drkhiczaign3lnbhr161b7rbnjr8z83w8yn2wc3l";
   };
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Multi-purpose WAVE data processing and reporting utility";
-    homepage = http://www.etree.org/shnutils/shntool/;
+    homepage = "http://www.etree.org/shnutils/shntool/";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.all;
     maintainers = with stdenv.lib.maintainers; [ jcumming ];
diff --git a/pkgs/applications/audio/sidplayfp/default.nix b/pkgs/applications/audio/sidplayfp/default.nix
index aff8c173d9f..b0a50bbf128 100644
--- a/pkgs/applications/audio/sidplayfp/default.nix
+++ b/pkgs/applications/audio/sidplayfp/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A SID player using libsidplayfp";
-    homepage = https://sourceforge.net/projects/sidplay-residfp/;
+    homepage = "https://sourceforge.net/projects/sidplay-residfp/";
     license = with licenses; [ gpl2Plus ];
     maintainers = with maintainers; [ dezgeg ];
     platforms = with platforms; linux;
diff --git a/pkgs/applications/audio/sisco.lv2/default.nix b/pkgs/applications/audio/sisco.lv2/default.nix
index f95655f5e9a..07215fc42f8 100644
--- a/pkgs/applications/audio/sisco.lv2/default.nix
+++ b/pkgs/applications/audio/sisco.lv2/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Simple audio oscilloscope with variable time scale, triggering, cursors and numeric readout in LV2 plugin format";
-    homepage = http://x42.github.io/sisco.lv2/;
+    homepage = "http://x42.github.io/sisco.lv2/";
     license = licenses.gpl2;
     maintainers = [ maintainers.e-user ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/snapcast/default.nix b/pkgs/applications/audio/snapcast/default.nix
index 21a36cecbe5..531a633f05d 100644
--- a/pkgs/applications/audio/snapcast/default.nix
+++ b/pkgs/applications/audio/snapcast/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Synchronous multi-room audio player";
-    homepage = https://github.com/badaix/snapcast;
+    homepage = "https://github.com/badaix/snapcast";
     maintainers = with maintainers; [ fpletz ];
     license = licenses.gpl3;
   };
diff --git a/pkgs/applications/audio/sndpeek/default.nix b/pkgs/applications/audio/sndpeek/default.nix
index 376aadc7385..d239fda11ae 100644
--- a/pkgs/applications/audio/sndpeek/default.nix
+++ b/pkgs/applications/audio/sndpeek/default.nix
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
          * available on MacOS X, Linux, and Windows under GPL
          * part of the sndtools distribution.
     '';
-    homepage = https://soundlab.cs.princeton.edu/software/sndpeek/;
+    homepage = "https://soundlab.cs.princeton.edu/software/sndpeek/";
     license = licenses.gpl2;
     maintainers = [ maintainers.laikq ];
   };
diff --git a/pkgs/applications/audio/sonata/default.nix b/pkgs/applications/audio/sonata/default.nix
index b9293fe2729..68eefadf411 100644
--- a/pkgs/applications/audio/sonata/default.nix
+++ b/pkgs/applications/audio/sonata/default.nix
@@ -61,7 +61,7 @@ in buildPythonApplication rec {
        - Commandline control
        - Available in 24 languages
     '';
-    homepage = https://www.nongnu.org/sonata/;
+    homepage = "https://www.nongnu.org/sonata/";
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.rvl ];
diff --git a/pkgs/applications/audio/sonic-lineup/default.nix b/pkgs/applications/audio/sonic-lineup/default.nix
index 93b4c2dade4..b837eb07cf1 100644
--- a/pkgs/applications/audio/sonic-lineup/default.nix
+++ b/pkgs/applications/audio/sonic-lineup/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Comparative visualisation of related audio recordings";
-    homepage = https://www.sonicvisualiser.org/sonic-lineup/;
+    homepage = "https://www.sonicvisualiser.org/sonic-lineup/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.vandenoever ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/sonic-visualiser/default.nix b/pkgs/applications/audio/sonic-visualiser/default.nix
index f7803098066..e8b6a4d4313 100644
--- a/pkgs/applications/audio/sonic-visualiser/default.nix
+++ b/pkgs/applications/audio/sonic-visualiser/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "View and analyse contents of music audio files";
-    homepage = https://www.sonicvisualiser.org/;
+    homepage = "https://www.sonicvisualiser.org/";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu maintainers.marcweber ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/sooperlooper/default.nix b/pkgs/applications/audio/sooperlooper/default.nix
index 768b40a1138..3fb111db851 100644
--- a/pkgs/applications/audio/sooperlooper/default.nix
+++ b/pkgs/applications/audio/sooperlooper/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
     '';
 
     version = version;
-    homepage = http://essej.net/sooperlooper/index.html;
+    homepage = "http://essej.net/sooperlooper/index.html";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.magnetophon ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/sorcer/default.nix b/pkgs/applications/audio/sorcer/default.nix
index 5d8ae0928c9..7601f942868 100644
--- a/pkgs/applications/audio/sorcer/default.nix
+++ b/pkgs/applications/audio/sorcer/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://openavproductions.com/sorcer/;
+    homepage = "http://openavproductions.com/sorcer/";
     description = "A wavetable LV2 plugin synth, targeted at the electronic / dubstep genre";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/sound-juicer/default.nix b/pkgs/applications/audio/sound-juicer/default.nix
index 20c8a83676e..dcad0cec1e8 100644
--- a/pkgs/applications/audio/sound-juicer/default.nix
+++ b/pkgs/applications/audio/sound-juicer/default.nix
@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec{
 
   meta = with stdenv.lib; {
     description = "A Gnome CD Ripper";
-    homepage = https://wiki.gnome.org/Apps/SoundJuicer;
+    homepage = "https://wiki.gnome.org/Apps/SoundJuicer";
     maintainers = [ maintainers.bdimcheff ];
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/soundscape-renderer/default.nix b/pkgs/applications/audio/soundscape-renderer/default.nix
index 5b5f01eef5c..741211bd90d 100644
--- a/pkgs/applications/audio/soundscape-renderer/default.nix
+++ b/pkgs/applications/audio/soundscape-renderer/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   version = "2016-11-03";
 
   src = fetchgit {
-    url = https://github.com/SoundScapeRenderer/ssr;
+    url = "https://github.com/SoundScapeRenderer/ssr";
     rev = "0dd0136dd24e47b63d8a4e05de467f5c7b047ec9";
     sha256 = "095x2spv9bmg6pi71mpajnghbqj58ziflg16f9854awx0qp9d8x7";
   };
@@ -45,7 +45,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://spatialaudio.net/ssr/;
+    homepage = "http://spatialaudio.net/ssr/";
     description = "The SoundScape Renderer (SSR) is a tool for real-time spatial audio reproduction";
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.fridh ];
diff --git a/pkgs/applications/audio/spectmorph/default.nix b/pkgs/applications/audio/spectmorph/default.nix
index a4f48aa0c21..d8209dad02d 100644
--- a/pkgs/applications/audio/spectmorph/default.nix
+++ b/pkgs/applications/audio/spectmorph/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Allows to analyze samples of musical instruments, and to combine them (morphing) to construct hybrid sounds";
-    homepage = http://spectmorph.org;
+    homepage = "http://spectmorph.org";
     license = licenses.gpl3;
     platforms = [ "x86_64-linux" "i686-linux" ];
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/spectrojack/default.nix b/pkgs/applications/audio/spectrojack/default.nix
index 4c1682b1e0b..35534750d0c 100644
--- a/pkgs/applications/audio/spectrojack/default.nix
+++ b/pkgs/applications/audio/spectrojack/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A little spectrogram/audiogram/sonogram/whatever for JACK";
-    homepage = http://sed.free.fr/spectrojack;
+    homepage = "http://sed.free.fr/spectrojack";
     license = stdenv.lib.licenses.publicDomain;
     maintainers = with stdenv.lib.maintainers; [ sleexyz ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/audio/speech-denoiser/default.nix b/pkgs/applications/audio/speech-denoiser/default.nix
index 6598d24fb07..706a6956c5d 100644
--- a/pkgs/applications/audio/speech-denoiser/default.nix
+++ b/pkgs/applications/audio/speech-denoiser/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation  {
 
   meta = with stdenv.lib; {
     description = "Speech denoise lv2 plugin based on RNNoise library";
-    homepage = https://github.com/lucianodato/speech-denoiser;
+    homepage = "https://github.com/lucianodato/speech-denoiser";
     license = licenses.lgpl3;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/spek/default.nix b/pkgs/applications/audio/spek/default.nix
index f4922e388c4..88b22c59ae5 100644
--- a/pkgs/applications/audio/spek/default.nix
+++ b/pkgs/applications/audio/spek/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Analyse your audio files by showing their spectrogram";
-    homepage = http://spek.cc/;
+    homepage = "http://spek.cc/";
     license = licenses.gpl3;
     platforms = platforms.all;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/audio/split2flac/default.nix b/pkgs/applications/audio/split2flac/default.nix
index 3c9565df919..efad434e307 100644
--- a/pkgs/applications/audio/split2flac/default.nix
+++ b/pkgs/applications/audio/split2flac/default.nix
@@ -54,7 +54,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Split flac/ape/wv/wav + cue sheet into separate tracks";
-    homepage = https://github.com/ftrvxmtrx/split2flac;
+    homepage = "https://github.com/ftrvxmtrx/split2flac";
     license = licenses.mit;
     platforms = platforms.all;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/audio/spotify-tui/default.nix b/pkgs/applications/audio/spotify-tui/default.nix
index 65dfc50fe1b..5f9cf2720cd 100644
--- a/pkgs/applications/audio/spotify-tui/default.nix
+++ b/pkgs/applications/audio/spotify-tui/default.nix
@@ -20,7 +20,7 @@ rustPlatform.buildRustPackage rec {
 
   meta = with stdenv.lib; {
     description = "Spotify for the terminal written in Rust";
-    homepage = https://github.com/Rigellute/spotify-tui;
+    homepage = "https://github.com/Rigellute/spotify-tui";
     changelog = "https://github.com/Rigellute/spotify-tui/releases/tag/v${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ jwijenbergh ];
diff --git a/pkgs/applications/audio/spotify/default.nix b/pkgs/applications/audio/spotify/default.nix
index eb2055ec7c1..245d96dee01 100644
--- a/pkgs/applications/audio/spotify/default.nix
+++ b/pkgs/applications/audio/spotify/default.nix
@@ -158,7 +158,7 @@ stdenv.mkDerivation {
     '';
 
   meta = with stdenv.lib; {
-    homepage = https://www.spotify.com/;
+    homepage = "https://www.spotify.com/";
     description = "Play music from the Spotify music service";
     license = licenses.unfree;
     maintainers = with maintainers; [ eelco ftrvxmtrx sheenobu mudri timokau ma27 ];
diff --git a/pkgs/applications/audio/spotifywm/default.nix b/pkgs/applications/audio/spotifywm/default.nix
index 2380c8e5d9e..a51e82f29c4 100644
--- a/pkgs/applications/audio/spotifywm/default.nix
+++ b/pkgs/applications/audio/spotifywm/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/dasJ/spotifywm;
+    homepage = "https://github.com/dasJ/spotifywm";
     description = "Wrapper around Spotify that correctly sets class name before opening the window";
     license = licenses.mit;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/squeezelite/default.nix b/pkgs/applications/audio/squeezelite/default.nix
index ce0153e9f26..de135706ad3 100644
--- a/pkgs/applications/audio/squeezelite/default.nix
+++ b/pkgs/applications/audio/squeezelite/default.nix
@@ -62,7 +62,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Lightweight headless squeezebox client emulator";
-    homepage = https://github.com/ralph-irving/squeezelite;
+    homepage = "https://github.com/ralph-irving/squeezelite";
     license = with licenses; [ gpl3 ] ++ optional dsdSupport bsd2;
     maintainers = with maintainers; [ samdoshi ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/squishyball/default.nix b/pkgs/applications/audio/squishyball/default.nix
index 496ce779ffb..e6dd48018e7 100644
--- a/pkgs/applications/audio/squishyball/default.nix
+++ b/pkgs/applications/audio/squishyball/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
        comparisons of groups of up to ten samples; this is the default
        mode of operation.
     '';
-    homepage = https://svn.xiph.org/trunk/squishyball;
+    homepage = "https://svn.xiph.org/trunk/squishyball";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ michalrus ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/ssrc/default.nix b/pkgs/applications/audio/ssrc/default.nix
index 1247bbc19f9..9d519e14147 100644
--- a/pkgs/applications/audio/ssrc/default.nix
+++ b/pkgs/applications/audio/ssrc/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
     '';
 
     version = version;
-    homepage = http://shibatch.sourceforge.net/;
+    homepage = "http://shibatch.sourceforge.net/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ leenaars];
     platforms = with platforms; [ linux ] ;
diff --git a/pkgs/applications/audio/stone-phaser/default.nix b/pkgs/applications/audio/stone-phaser/default.nix
index 6e64ebc7fb3..d36b28df978 100644
--- a/pkgs/applications/audio/stone-phaser/default.nix
+++ b/pkgs/applications/audio/stone-phaser/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/jpcima/stone-phaser;
+    homepage = "https://github.com/jpcima/stone-phaser";
     description = "A classic analog phaser effect, made with DPF and Faust";
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/streamripper/default.nix b/pkgs/applications/audio/streamripper/default.nix
index efa87a2f72c..55ed40c2fb8 100644
--- a/pkgs/applications/audio/streamripper/default.nix
+++ b/pkgs/applications/audio/streamripper/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ glib libogg libvorbis libmad ];
 
   meta = with stdenv.lib; {
-    homepage = http://streamripper.sourceforge.net/;
+    homepage = "http://streamripper.sourceforge.net/";
     description = "Application that lets you record streaming mp3 to your hard drive";
     license = licenses.gpl2;
     maintainers = with maintainers; [ the-kenny ];
diff --git a/pkgs/applications/audio/svox/default.nix b/pkgs/applications/audio/svox/default.nix
index 3e9fe4725af..0f8e5143883 100644
--- a/pkgs/applications/audio/svox/default.nix
+++ b/pkgs/applications/audio/svox/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Text-to-speech engine";
-    homepage = https://android.googlesource.com/platform/external/svox;
+    homepage = "https://android.googlesource.com/platform/external/svox";
     platforms = platforms.linux;
     license = licenses.asl20;
     maintainers = with maintainers; [ abbradar ];
diff --git a/pkgs/applications/audio/swh-lv2/default.nix b/pkgs/applications/audio/swh-lv2/default.nix
index b59752d7cc3..02499d54476 100644
--- a/pkgs/applications/audio/swh-lv2/default.nix
+++ b/pkgs/applications/audio/swh-lv2/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   installPhase = "make install-system";
 
   meta = with stdenv.lib; {
-    homepage = http://plugin.org.uk;
+    homepage = "http://plugin.org.uk";
     description = "LV2 version of Steve Harris' SWH plugins";
     longDescription = ''
       SWH plugins include:
diff --git a/pkgs/applications/audio/tambura/default.nix b/pkgs/applications/audio/tambura/default.nix
index 030bb2c01a7..96f9bb7053e 100644
--- a/pkgs/applications/audio/tambura/default.nix
+++ b/pkgs/applications/audio/tambura/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A FAUST patch inspired by the Indian Tambura/Tanpura - a four string drone instrument, known for its unique rich harmonic timbre";
-    homepage = https://github.com/olilarkin/Tambura;
+    homepage = "https://github.com/olilarkin/Tambura";
     license = licenses.gpl2;
     maintainers = [ maintainers.magnetophon ];
   };
diff --git a/pkgs/applications/audio/tetraproc/default.nix b/pkgs/applications/audio/tetraproc/default.nix
index 40362fdd496..8780e54bb7c 100644
--- a/pkgs/applications/audio/tetraproc/default.nix
+++ b/pkgs/applications/audio/tetraproc/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Converts the A-format signals from a tetrahedral Ambisonic microphone into B-format signals ready for recording";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/timemachine/default.nix b/pkgs/applications/audio/timemachine/default.nix
index 3564f875c9b..8be43346bc0 100644
--- a/pkgs/applications/audio/timemachine/default.nix
+++ b/pkgs/applications/audio/timemachine/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "JACK audio recorder";
-    homepage = http://plugin.org.uk/timemachine/;
+    homepage = "http://plugin.org.uk/timemachine/";
     license = stdenv.lib.licenses.lgpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.nico202 ];
diff --git a/pkgs/applications/audio/tony/default.nix b/pkgs/applications/audio/tony/default.nix
index 92cab9b5b8d..011d8025364 100644
--- a/pkgs/applications/audio/tony/default.nix
+++ b/pkgs/applications/audio/tony/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Pitch and note annotation of unaccompanied melody";
-    homepage = https://www.sonicvisualiser.org/tony/;
+    homepage = "https://www.sonicvisualiser.org/tony/";
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/transcode/default.nix b/pkgs/applications/audio/transcode/default.nix
index d7d5b65375e..c7ee3914f25 100644
--- a/pkgs/applications/audio/transcode/default.nix
+++ b/pkgs/applications/audio/transcode/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Suite of command line utilities for transcoding video and audio codecs, and for converting between different container formats";
-    homepage = http://www.transcoding.org/;
+    homepage = "http://www.transcoding.org/";
     license = licenses.lgpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/audio/transcribe/default.nix b/pkgs/applications/audio/transcribe/default.nix
index 8eb846ac9c5..d9469fa4b7a 100644
--- a/pkgs/applications/audio/transcribe/default.nix
+++ b/pkgs/applications/audio/transcribe/default.nix
@@ -64,7 +64,7 @@ stdenv.mkDerivation rec {
       has many transcription-specific features not found on
       conventional music players.
     '';
-    homepage = https://www.seventhstring.com/xscribe/;
+    homepage = "https://www.seventhstring.com/xscribe/";
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = with maintainers; [ michalrus ];
diff --git a/pkgs/applications/audio/tree-from-tags/default.nix b/pkgs/applications/audio/tree-from-tags/default.nix
index 521133cb08f..3b25b4218f1 100644
--- a/pkgs/applications/audio/tree-from-tags/default.nix
+++ b/pkgs/applications/audio/tree-from-tags/default.nix
@@ -30,7 +30,7 @@ EOF
 
   meta = with stdenv.lib; {
     description = "Create file hierarchies from media tags";
-    homepage = https://www.emacswiki.org/emacs/Bongo;
+    homepage = "https://www.emacswiki.org/emacs/Bongo";
     platforms = ruby.meta.platforms;
     maintainers = [ maintainers.livnev maintainers.dbrock ];
     license = licenses.gpl2Plus;
diff --git a/pkgs/applications/audio/uade123/default.nix b/pkgs/applications/audio/uade123/default.nix
index 844eea11f51..9130461e4d7 100644
--- a/pkgs/applications/audio/uade123/default.nix
+++ b/pkgs/applications/audio/uade123/default.nix
@@ -17,7 +17,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Plays old Amiga tunes through UAE emulation and cloned m68k-assembler Eagleplayer API";
-    homepage = http://zakalwe.fi/uade/;
+    homepage = "http://zakalwe.fi/uade/";
     license = licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.gnidorah ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/audio/vcv-rack/default.nix b/pkgs/applications/audio/vcv-rack/default.nix
index 21aa27fa5bc..2aa09ec0be8 100644
--- a/pkgs/applications/audio/vcv-rack/default.nix
+++ b/pkgs/applications/audio/vcv-rack/default.nix
@@ -93,7 +93,7 @@ with stdenv.lib; stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open-source virtual modular synthesizer";
-    homepage = https://vcvrack.com/;
+    homepage = "https://vcvrack.com/";
     # The source is BSD-3 licensed, some of the art is CC-BY-NC 4.0 or under a
     # no-derivatives clause
     license = with licenses; [ bsd3 cc-by-nc-40 unfreeRedistributable ];
diff --git a/pkgs/applications/audio/vimpc/default.nix b/pkgs/applications/audio/vimpc/default.nix
index 7f02ea9cefe..bcbfa6d3874 100644
--- a/pkgs/applications/audio/vimpc/default.nix
+++ b/pkgs/applications/audio/vimpc/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A vi/vim inspired client for the Music Player Daemon (mpd)";
-    homepage = https://github.com/boysetsfrog/vimpc;
+    homepage = "https://github.com/boysetsfrog/vimpc";
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/audio/vkeybd/default.nix b/pkgs/applications/audio/vkeybd/default.nix
index 3f77a657472..0e8f12823d1 100644
--- a/pkgs/applications/audio/vkeybd/default.nix
+++ b/pkgs/applications/audio/vkeybd/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Virtual MIDI keyboard";
-    homepage = https://www.alsa-project.org/~tiwai/alsa.html;
+    homepage = "https://www.alsa-project.org/~tiwai/alsa.html";
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/vocal/default.nix b/pkgs/applications/audio/vocal/default.nix
index 8b94450f8bd..6ef992ffff6 100644
--- a/pkgs/applications/audio/vocal/default.nix
+++ b/pkgs/applications/audio/vocal/default.nix
@@ -72,7 +72,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       Vocal is a powerful, fast, and intuitive application that helps users find new podcasts, manage their libraries, and enjoy the best that indepedent audio and video publishing has to offer. Vocal features full support for both episode downloading and streaming, native system integration, iTunes store search and top 100 charts (with international results support), iTunes link parsing, OPML importing and exporting, and so much more. Plus, it has great smart features like automatically keeping your library clean from old files, and the ability to set custom skip intervals.
     '';
-    homepage = https://github.com/needle-and-thread/vocal;
+    homepage = "https://github.com/needle-and-thread/vocal";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ worldofpeace ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/vorbis-tools/default.nix b/pkgs/applications/audio/vorbis-tools/default.nix
index 44d322069fc..2270e56e62a 100644
--- a/pkgs/applications/audio/vorbis-tools/default.nix
+++ b/pkgs/applications/audio/vorbis-tools/default.nix
@@ -10,7 +10,7 @@ in
 stdenv.mkDerivation {
   name = "vorbis-tools-1.4.0";
   src = fetchurl {
-    url = http://downloads.xiph.org/releases/vorbis/vorbis-tools-1.4.0.tar.gz;
+    url = "http://downloads.xiph.org/releases/vorbis/vorbis-tools-1.4.0.tar.gz";
     sha256 = "1g12bnh5ah08v529y72kfdz5lhvy75iaz7f9jskyby23m9dkk2d3";
   };
 
@@ -29,7 +29,7 @@ stdenv.mkDerivation {
       A set of command-line tools to manipulate Ogg Vorbis audio
       files, notably the `ogg123' player and the `oggenc' encoder.
     '';
-    homepage = https://xiph.org/vorbis/;
+    homepage = "https://xiph.org/vorbis/";
     license = licenses.gpl2;
     platforms = platforms.all;
   };
diff --git a/pkgs/applications/audio/waon/default.nix b/pkgs/applications/audio/waon/default.nix
index b27fdbffb7d..bc05547e641 100644
--- a/pkgs/applications/audio/waon/default.nix
+++ b/pkgs/applications/audio/waon/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A Wave-to-Notes transcriber";
-    homepage = https://kichiki.github.io/WaoN/;
+    homepage = "https://kichiki.github.io/WaoN/";
     license = licenses.gpl2;
     maintainers = [ maintainers.puckipedia ];
     platforms = platforms.all;
diff --git a/pkgs/applications/audio/wavegain/default.nix b/pkgs/applications/audio/wavegain/default.nix
index 5f56fb7297f..d9b13f53273 100644
--- a/pkgs/applications/audio/wavegain/default.nix
+++ b/pkgs/applications/audio/wavegain/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "ReplayGain for wave files";
-    homepage = https://github.com/MestreLion/wavegain;
+    homepage = "https://github.com/MestreLion/wavegain";
     license = stdenv.lib.licenses.lgpl21;
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.robbinch ];
diff --git a/pkgs/applications/audio/whipper/default.nix b/pkgs/applications/audio/whipper/default.nix
index ff278d4d7f2..5cbc9a07b6c 100644
--- a/pkgs/applications/audio/whipper/default.nix
+++ b/pkgs/applications/audio/whipper/default.nix
@@ -53,7 +53,7 @@ python3.pkgs.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/whipper-team/whipper;
+    homepage = "https://github.com/whipper-team/whipper";
     description = "A CD ripper aiming for accuracy over speed";
     maintainers = with maintainers; [ rycee emily ];
     license = licenses.gpl3Plus;
diff --git a/pkgs/applications/audio/wolf-shaper/default.nix b/pkgs/applications/audio/wolf-shaper/default.nix
index 13bf1d674c7..7d42a3c4e7b 100644
--- a/pkgs/applications/audio/wolf-shaper/default.nix
+++ b/pkgs/applications/audio/wolf-shaper/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = https://pdesaulniers.github.io/wolf-shaper/;
+    homepage = "https://pdesaulniers.github.io/wolf-shaper/";
     description = "Waveshaper plugin with spline-based graph editor";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/x42-avldrums/default.nix b/pkgs/applications/audio/x42-avldrums/default.nix
index b34062672f9..fb05a50b4e5 100644
--- a/pkgs/applications/audio/x42-avldrums/default.nix
+++ b/pkgs/applications/audio/x42-avldrums/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Drum sample player LV2 plugin dedicated to Glen MacArthur's AVLdrums";
-    homepage = https://x42-plugins.com/x42/x42-avldrums;
+    homepage = "https://x42-plugins.com/x42/x42-avldrums";
     maintainers = with maintainers; [ magnetophon orivej ];
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/x42-gmsynth/default.nix b/pkgs/applications/audio/x42-gmsynth/default.nix
index 33d61eeb35f..7a96e3fd4f2 100644
--- a/pkgs/applications/audio/x42-gmsynth/default.nix
+++ b/pkgs/applications/audio/x42-gmsynth/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Chris Colins' General User soundfont player LV2 plugin";
-    homepage = https://x42-plugins.com/x42/x42-gmsynth;
+    homepage = "https://x42-plugins.com/x42/x42-gmsynth";
     maintainers = with maintainers; [ orivej ];
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/x42-plugins/default.nix b/pkgs/applications/audio/x42-plugins/default.nix
index f4087506daa..8ec53b0c66a 100644
--- a/pkgs/applications/audio/x42-plugins/default.nix
+++ b/pkgs/applications/audio/x42-plugins/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib;
     { description = "Collection of LV2 plugins by Robin Gareus";
-      homepage = https://github.com/x42/x42-plugins;
+      homepage = "https://github.com/x42/x42-plugins";
       maintainers = with maintainers; [ magnetophon ];
       license = licenses.gpl2;
       platforms = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/audio/yasr/default.nix b/pkgs/applications/audio/yasr/default.nix
index c8902f1dda4..68423197f3c 100644
--- a/pkgs/applications/audio/yasr/default.nix
+++ b/pkgs/applications/audio/yasr/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   ]; # taken from the debian yasr package
 
   meta = {
-    homepage = http://yasr.sourceforge.net;
+    homepage = "http://yasr.sourceforge.net";
     description = "A general-purpose console screen reader";
     longDescription = "Yasr is a general-purpose console screen reader for GNU/Linux and other Unix-like operating systems.";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/ympd/default.nix b/pkgs/applications/audio/ympd/default.nix
index 7976f747717..8f86d6e7ba9 100644
--- a/pkgs/applications/audio/ympd/default.nix
+++ b/pkgs/applications/audio/ympd/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cmake mpd_clientlib openssl ];
 
   meta = {
-    homepage = https://www.ympd.org;
+    homepage = "https://www.ympd.org";
     description = "Standalone MPD Web GUI written in C, utilizing Websockets and Bootstrap/JS";
     maintainers = [ stdenv.lib.maintainers.siddharthist ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/audio/yoshimi/default.nix b/pkgs/applications/audio/yoshimi/default.nix
index 40691be1a0c..f8ea58fef3c 100644
--- a/pkgs/applications/audio/yoshimi/default.nix
+++ b/pkgs/applications/audio/yoshimi/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation  rec {
       ZynAddSubFX along with very good Jack and Alsa midi/audio
       functionality on Linux
     '';
-    homepage = http://yoshimi.sourceforge.net;
+    homepage = "http://yoshimi.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/audio/zam-plugins/default.nix b/pkgs/applications/audio/zam-plugins/default.nix
index b9645fa4d8a..a34773513d9 100644
--- a/pkgs/applications/audio/zam-plugins/default.nix
+++ b/pkgs/applications/audio/zam-plugins/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://www.zamaudio.com/?p=976;
+    homepage = "http://www.zamaudio.com/?p=976";
     description = "A collection of LV2/LADSPA/VST/JACK audio plugins by ZamAudio";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.magnetophon ];
diff --git a/pkgs/applications/audio/zita-ajbridge/default.nix b/pkgs/applications/audio/zita-ajbridge/default.nix
index 6904952afea..6247d1d282a 100644
--- a/pkgs/applications/audio/zita-ajbridge/default.nix
+++ b/pkgs/applications/audio/zita-ajbridge/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Connect additional ALSA devices to JACK";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/zita-at1/default.nix b/pkgs/applications/audio/zita-at1/default.nix
index c91edf34c82..d357febd882 100644
--- a/pkgs/applications/audio/zita-at1/default.nix
+++ b/pkgs/applications/audio/zita-at1/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Autotuner Jack application to correct the pitch of vocal tracks";
-    homepage = https://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "https://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/zita-njbridge/default.nix b/pkgs/applications/audio/zita-njbridge/default.nix
index 1ec6946cf38..3a293cfc026 100644
--- a/pkgs/applications/audio/zita-njbridge/default.nix
+++ b/pkgs/applications/audio/zita-njbridge/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "command line Jack clients to transmit full quality multichannel audio over a local IP network";
-    homepage = http://kokkinizita.linuxaudio.org/linuxaudio/index.html;
+    homepage = "http://kokkinizita.linuxaudio.org/linuxaudio/index.html";
     license = licenses.gpl3;
     maintainers = [ maintainers.magnetophon ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/zynaddsubfx/default.nix b/pkgs/applications/audio/zynaddsubfx/default.nix
index e22bf9ed653..9a432f73d3f 100644
--- a/pkgs/applications/audio/zynaddsubfx/default.nix
+++ b/pkgs/applications/audio/zynaddsubfx/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "High quality software synthesizer";
-    homepage = http://zynaddsubfx.sourceforge.net;
+    homepage = "http://zynaddsubfx.sourceforge.net";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu maintainers.nico202 ];
author	Michael Reilly <OmnipotentEntity@gmail.com>	2020-03-31 21:11:51 -0400
committer	Jörg Thalheim <joerg@thalheim.io>	2020-04-10 17:54:53 +0100
commit	84cf00f98031e93f389f1eb93c4a7374a33cc0a9 (patch)
tree	203c51a8740cb4893b8cfc4426d4cd49a97430e0 /pkgs/applications/audio
parent	bf5eb87033cc6a5de5cc48da544c17a4dedc790b (diff)
download	nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.gz nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.bz2 nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.lz nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.xz nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.tar.zst nixpkgs-84cf00f98031e93f389f1eb93c4a7374a33cc0a9.zip