Merge branch 'master' into staging-next

There were several more conflicts from name -> pname+version;
all auto-solved by kdiff3, hopefully OK.

Hydra nixpkgs: ?compare=1538611

111 files changed, 1768 insertions, 1314 deletions

diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index e54fac92a67..7ff22fb61fa 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -335,6 +335,12 @@
     githubId = 2822871;
     name = "Alistair Bill";
   };
+  alkeryn = {
+    email = "plbraundev@gmail.com";
+    github = "Alkeryn";
+    githubId = 11599075;
+    name = "Pierre-Louis Braun";
+  };
   all = {
     email = "nix-commits@lists.science.uu.nl";
     name = "Nix Committers";
@@ -3385,6 +3391,11 @@
     githubId = 10544;
     name = "Giuluo Eulisse";
   };
+  ktor = {
+    email = "kruszewsky@gmail.com";
+    github = "ktor";
+    name = "Pawel Kruszewski";
+  };
   ktosiek = {
     email = "tomasz.kontusz@gmail.com";
     github = "ktosiek";
@@ -3514,6 +3525,11 @@
     githubId = 307589;
     name = "Nathaniel Baxter";
   };
+  lightbulbjim = {
+    email = "chris@killred.net";
+    github = "lightbulbjim";
+    name = "Chris Rendle-Short";
+  };
   lightdiscord = {
     email = "root@arnaud.sh";
     github = "lightdiscord";
diff --git a/nixos/doc/manual/development/releases.xml b/nixos/doc/manual/development/releases.xml
index 3cb16d33cd4..1cdec64f69b 100755
--- a/nixos/doc/manual/development/releases.xml
+++ b/nixos/doc/manual/development/releases.xml
@@ -220,6 +220,30 @@
    </itemizedlist>
   </section>
  </section>
+ <section xml:id="release-managers">
+  <title>Release Management Team</title>
+  <para>
+   For each release there are two release managers. After each release the
+   release manager having managed two releases steps down and the release
+   management team of the last release appoints a new release manager.
+  </para>
+  <para>
+   This makes sure a release management team always consists of one release
+   manager who already has managed one release and one release manager being
+   introduced to their role, making it easier to pass on knowledge and
+   experience.
+  </para>
+  <para>
+   A release manager's role and responsibilities are:
+  </para>
+  <itemizedlist>
+   <listitem><para>manage the release process</para></listitem>
+   <listitem><para>start discussions about features and changes for a given release</para></listitem>
+   <listitem><para>create a roadmap</para></listitem>
+   <listitem><para>release in cooperation with Eelco Dolstra</para></listitem>
+   <listitem><para>decide which bug fixes, features, etc... get backported after a release</para></listitem>
+  </itemizedlist>
+ </section>
  <section xml:id="release-schedule">
   <title>Release schedule</title>
 
diff --git a/nixos/modules/config/vte.nix b/nixos/modules/config/vte.nix
index 9024ceddaee..d4a8c926fef 100644
--- a/nixos/modules/config/vte.nix
+++ b/nixos/modules/config/vte.nix
@@ -42,7 +42,7 @@ in
 
   config = mkMerge [
     (mkIf config.programs.bash.vteIntegration {
-      programs.bash.interactiveShellInit = vteInitSnippet;
+      programs.bash.interactiveShellInit = mkBefore vteInitSnippet;
     })
 
     (mkIf config.programs.zsh.vteIntegration {
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 79c72fc1422..388f4788b59 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -649,6 +649,7 @@
   ./services/networking/nullidentdmod.nix
   ./services/networking/nylon.nix
   ./services/networking/ocserv.nix
+  ./services/networking/ofono.nix
   ./services/networking/oidentd.nix
   ./services/networking/openfire.nix
   ./services/networking/openntpd.nix
diff --git a/nixos/modules/programs/environment.nix b/nixos/modules/programs/environment.nix
index 4d762314298..66eb8348266 100644
--- a/nixos/modules/programs/environment.nix
+++ b/nixos/modules/programs/environment.nix
@@ -21,6 +21,7 @@ in
         PAGER = mkDefault "less -R";
         EDITOR = mkDefault "nano";
         XCURSOR_PATH = [ "$HOME/.icons" ];
+        XDG_CONFIG_DIRS = [ "/etc/xdg" ]; # needs to be before profile-relative paths to allow changes through environment.etc
       };
 
     environment.profiles = mkAfter
diff --git a/nixos/modules/programs/gnupg.nix b/nixos/modules/programs/gnupg.nix
index 9618d61a1f5..bcbc994efe9 100644
--- a/nixos/modules/programs/gnupg.nix
+++ b/nixos/modules/programs/gnupg.nix
@@ -83,7 +83,8 @@ in
     systemd.user.sockets.dirmngr = mkIf cfg.dirmngr.enable {
       wantedBy = [ "sockets.target" ];
     };
-
+    
+    environment.systemPackages = with pkgs; [ cfg.package ];
     systemd.packages = [ cfg.package ];
 
     environment.interactiveShellInit = ''
diff --git a/nixos/modules/rename.nix b/nixos/modules/rename.nix
index e32fa6fded4..65014b4beed 100644
--- a/nixos/modules/rename.nix
+++ b/nixos/modules/rename.nix
@@ -178,6 +178,9 @@ with lib;
        The starting time can be configured via <literal>services.postgresqlBackup.startAt</literal>.
     '')
 
+    # phpfpm
+    (mkRemovedOptionModule [ "services" "phpfpm" "poolConfigs" ] "Use services.phpfpm.pools instead.")
+
     # zabbixServer
     (mkRenamedOptionModule [ "services" "zabbixServer" "dbServer" ] [ "services" "zabbixServer" "database" "host" ])
 
diff --git a/nixos/modules/services/mail/roundcube.nix b/nixos/modules/services/mail/roundcube.nix
index e8b2e11bf72..bdedfa1bb70 100644
--- a/nixos/modules/services/mail/roundcube.nix
+++ b/nixos/modules/services/mail/roundcube.nix
@@ -4,6 +4,7 @@ with lib;
 
 let
   cfg = config.services.roundcube;
+  fpm = config.services.phpfpm.pools.roundcube;
 in
 {
   options.services.roundcube = {
@@ -105,7 +106,7 @@ in
             extraConfig = ''
               location ~* \.php$ {
                 fastcgi_split_path_info ^(.+\.php)(/.+)$;
-                fastcgi_pass unix:/run/phpfpm/roundcube;
+                fastcgi_pass unix:${fpm.socket};
                 include ${pkgs.nginx}/conf/fastcgi_params;
                 include ${pkgs.nginx}/conf/fastcgi.conf;
               }
@@ -119,24 +120,27 @@ in
       enable = true;
     };
 
-    services.phpfpm.poolConfigs.roundcube = ''
-      listen = /run/phpfpm/roundcube
-      listen.owner = nginx
-      listen.group = nginx
-      listen.mode = 0660
-      user = nginx
-      pm = dynamic
-      pm.max_children = 75
-      pm.start_servers = 2
-      pm.min_spare_servers = 1
-      pm.max_spare_servers = 20
-      pm.max_requests = 500
-      php_admin_value[error_log] = 'stderr'
-      php_admin_flag[log_errors] = on
-      php_admin_value[post_max_size] = 25M
-      php_admin_value[upload_max_filesize] = 25M
-      catch_workers_output = yes
-    '';
+    services.phpfpm.pools.roundcube = {
+      user = "nginx";
+      phpOptions = ''
+        error_log = 'stderr'
+        log_errors = on
+        post_max_size = 25M
+        upload_max_filesize = 25M
+      '';
+      settings = mapAttrs (name: mkDefault) {
+        "listen.owner" = "nginx";
+        "listen.group" = "nginx";
+        "listen.mode" = "0660";
+        "pm" = "dynamic";
+        "pm.max_children" = 75;
+        "pm.start_servers" = 2;
+        "pm.min_spare_servers" = 1;
+        "pm.max_spare_servers" = 20;
+        "pm.max_requests" = 500;
+        "catch_workers_output" = true;
+      };
+    };
     systemd.services.phpfpm-roundcube.after = [ "roundcube-setup.service" ];
 
     systemd.services.roundcube-setup = let
diff --git a/nixos/modules/services/misc/zoneminder.nix b/nixos/modules/services/misc/zoneminder.nix
index cf56ae89b39..6e83d47df1c 100644
--- a/nixos/modules/services/misc/zoneminder.nix
+++ b/nixos/modules/services/misc/zoneminder.nix
@@ -2,6 +2,7 @@
 
 let
   cfg = config.services.zoneminder;
+  fpm = config.services.phpfpm.pools.zoneminder;
   pkg = pkgs.zoneminder;
 
   dirName = pkg.dirName;
@@ -19,8 +20,6 @@ let
 
   useCustomDir = cfg.storageDir != null;
 
-  socket = "/run/phpfpm/${dirName}.sock";
-
   zms = "/cgi-bin/zms";
 
   dirs = dirList: [ dirName ] ++ map (e: "${dirName}/${e}") dirList;
@@ -274,7 +273,7 @@ in {
                   fastcgi_param SCRIPT_FILENAME $request_filename;
                   fastcgi_param HTTP_PROXY "";
 
-                  fastcgi_pass unix:${socket};
+                  fastcgi_pass unix:${fpm.socket};
                 }
               }
             '';
@@ -284,30 +283,27 @@ in {
 
       phpfpm = lib.mkIf useNginx {
         pools.zoneminder = {
-          listen = socket;
+          inherit user group;
           phpOptions = ''
             date.timezone = "${config.time.timeZone}"
 
             ${lib.concatStringsSep "\n" (map (e:
             "extension=${e.pkg}/lib/php/extensions/${e.name}.so") phpExtensions)}
           '';
-          extraConfig = ''
-            user = ${user}
-            group = ${group}
-
-            listen.owner = ${user}
-            listen.group = ${group}
-            listen.mode = 0660
-
-            pm = dynamic
-            pm.start_servers = 1
-            pm.min_spare_servers = 1
-            pm.max_spare_servers = 2
-            pm.max_requests = 500
-            pm.max_children = 5
-            pm.status_path = /$pool-status
-            ping.path = /$pool-ping
-          '';
+          settings = lib.mapAttrs (name: lib.mkDefault) {
+            "listen.owner" = user;
+            "listen.group" = group;
+            "listen.mode" = "0660";
+
+            "pm" = "dynamic";
+            "pm.start_servers" = 1;
+            "pm.min_spare_servers" = 1;
+            "pm.max_spare_servers" = 2;
+            "pm.max_requests" = 500;
+            "pm.max_children" = 5;
+            "pm.status_path" = "/$pool-status";
+            "ping.path" = "/$pool-ping";
+          };
         };
       };
     };
diff --git a/nixos/modules/services/networking/ofono.nix b/nixos/modules/services/networking/ofono.nix
new file mode 100644
index 00000000000..40ef9433de0
--- /dev/null
+++ b/nixos/modules/services/networking/ofono.nix
@@ -0,0 +1,44 @@
+# Ofono daemon.
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.ofono;
+
+  plugin_path =
+    lib.concatMapStringsSep ":"
+      (plugin: "${plugin}/lib/ofono/plugins")
+      cfg.plugins
+    ;
+
+in
+
+{
+  ###### interface
+  options = {
+    services.ofono = {
+      enable = mkEnableOption "Ofono";
+
+      plugins = mkOption {
+        type = types.listOf types.package;
+        default = [];
+        example = literalExample "[ pkgs.modem-manager-gui ]";
+        description = ''
+          The list of plugins to install.
+        '';
+      };
+    };
+  };
+
+  ###### implementation
+  config = mkIf cfg.enable {
+    services.dbus.packages = [ pkgs.ofono ];
+
+    systemd.packages = [ pkgs.ofono ];
+
+    systemd.services.ofono.environment.OFONO_PLUGIN_PATH = mkIf (cfg.plugins != []) plugin_path;
+
+  };
+}
diff --git a/nixos/modules/services/web-apps/icingaweb2/icingaweb2.nix b/nixos/modules/services/web-apps/icingaweb2/icingaweb2.nix
index 6740131dccd..95c8fb16051 100644
--- a/nixos/modules/services/web-apps/icingaweb2/icingaweb2.nix
+++ b/nixos/modules/services/web-apps/icingaweb2/icingaweb2.nix
@@ -1,7 +1,7 @@
 { config, lib, pkgs, ... }: with lib; let
   cfg = config.services.icingaweb2;
+  fpm = config.services.phpfpm.pools.${poolName};
   poolName = "icingaweb2";
-  phpfpmSocketName = "/var/run/phpfpm/${poolName}.sock";
 
   defaultConfig = {
     global = {
@@ -164,27 +164,26 @@ in {
   };
 
   config = mkIf cfg.enable {
-    services.phpfpm.poolConfigs = mkIf (cfg.pool == "${poolName}") {
-      "${poolName}" = ''
-        listen = "${phpfpmSocketName}"
-        listen.owner = nginx
-        listen.group = nginx
-        listen.mode = 0600
-        user = icingaweb2
-        pm = dynamic
-        pm.max_children = 75
-        pm.start_servers = 2
-        pm.min_spare_servers = 2
-        pm.max_spare_servers = 10
-      '';
+    services.phpfpm.pools = mkIf (cfg.pool == "${poolName}") {
+      "${poolName}" = {
+        user = "icingaweb2";
+        phpOptions = ''
+          extension = ${pkgs.phpPackages.imagick}/lib/php/extensions/imagick.so
+          date.timezone = "${cfg.timezone}"
+        '';
+        settings = mapAttrs (name: mkDefault) {
+          "listen.owner" = "nginx";
+          "listen.group" = "nginx";
+          "listen.mode" = "0600";
+          "pm" = "dynamic";
+          "pm.max_children" = 75;
+          "pm.start_servers" = 2;
+          "pm.min_spare_servers" = 2;
+          "pm.max_spare_servers" = 10;
+        };
+      };
     };
 
-    services.phpfpm.phpOptions = mkIf (cfg.pool == "${poolName}")
-      ''
-        extension = ${pkgs.phpPackages.imagick}/lib/php/extensions/imagick.so
-        date.timezone = "${cfg.timezone}"
-      '';
-
     systemd.services."phpfpm-${poolName}".serviceConfig.ReadWritePaths = [ "/etc/icingaweb2" ];
 
     services.nginx = {
@@ -208,7 +207,7 @@ in {
             include ${config.services.nginx.package}/conf/fastcgi.conf;
             try_files $uri =404;
             fastcgi_split_path_info ^(.+\.php)(/.+)$;
-            fastcgi_pass unix:${phpfpmSocketName};
+            fastcgi_pass unix:${fpm.socket};
             fastcgi_param SCRIPT_FILENAME ${pkgs.icingaweb2}/public/index.php;
           '';
         };
diff --git a/nixos/modules/services/web-apps/limesurvey.nix b/nixos/modules/services/web-apps/limesurvey.nix
index 84a94fc446e..2797feb32eb 100644
--- a/nixos/modules/services/web-apps/limesurvey.nix
+++ b/nixos/modules/services/web-apps/limesurvey.nix
@@ -120,15 +120,15 @@ in
     };
 
     poolConfig = mkOption {
-      type = types.lines;
-      default = ''
-        pm = dynamic
-        pm.max_children = 32
-        pm.start_servers = 2
-        pm.min_spare_servers = 2
-        pm.max_spare_servers = 4
-        pm.max_requests = 500
-      '';
+      type = with types; attrsOf (oneOf [ str int bool ]);
+      default = {
+        "pm" = "dynamic";
+        "pm.max_children" = 32;
+        "pm.start_servers" = 2;
+        "pm.min_spare_servers" = 2;
+        "pm.max_spare_servers" = 4;
+        "pm.max_requests" = 500;
+      };
       description = ''
         Options for the LimeSurvey PHP pool. See the documentation on <literal>php-fpm.conf</literal>
         for details on configuration directives.
@@ -203,17 +203,12 @@ in
     };
 
     services.phpfpm.pools.limesurvey = {
-      listen = "/run/phpfpm/limesurvey.sock";
-      extraConfig = ''
-        listen.owner = ${config.services.httpd.user};
-        listen.group = ${config.services.httpd.group};
-        user = ${user};
-        group = ${group};
-
-        env[LIMESURVEY_CONFIG] = ${limesurveyConfig}
-
-        ${cfg.poolConfig}
-      '';
+      inherit user group;
+      phpEnv.LIMESURVEY_CONFIG = "${limesurveyConfig}";
+      settings = {
+        "listen.owner" = config.services.httpd.user;
+        "listen.group" = config.services.httpd.group;
+      } // cfg.poolConfig;
     };
 
     services.httpd = {
@@ -241,7 +236,7 @@ in
             <Directory "${pkg}/share/limesurvey">
               <FilesMatch "\.php$">
                 <If "-f %{REQUEST_FILENAME}">
-                  SetHandler "proxy:unix:${fpm.listen}|fcgi://localhost/"
+                  SetHandler "proxy:unix:${fpm.socket}|fcgi://localhost/"
                 </If>
               </FilesMatch>
 
diff --git a/nixos/modules/services/web-apps/matomo.nix b/nixos/modules/services/web-apps/matomo.nix
index 14aca45a342..bf8b9dbcc21 100644
--- a/nixos/modules/services/web-apps/matomo.nix
+++ b/nixos/modules/services/web-apps/matomo.nix
@@ -225,22 +225,24 @@ in {
       serviceConfig.UMask = "0007";
     };
 
-    services.phpfpm.poolConfigs = let
+    services.phpfpm.pools = let
       # workaround for when both are null and need to generate a string,
       # which is illegal, but as assertions apparently are being triggered *after* config generation,
       # we have to avoid already throwing errors at this previous stage.
       socketOwner = if (cfg.nginx != null) then config.services.nginx.user
       else if (cfg.webServerUser != null) then cfg.webServerUser else "";
     in {
-      ${pool} = ''
-        listen = "${phpSocket}"
-        listen.owner = ${socketOwner}
-        listen.group = root
-        listen.mode = 0600
-        user = ${user}
-        env[PIWIK_USER_PATH] = ${dataDir}
-        ${cfg.phpfpmProcessManagerConfig}
-      '';
+      ${pool} = {
+        listen = phpSocket;
+        extraConfig = ''
+          listen.owner = ${socketOwner}
+          listen.group = root
+          listen.mode = 0600
+          user = ${user}
+          env[PIWIK_USER_PATH] = ${dataDir}
+          ${cfg.phpfpmProcessManagerConfig}
+        '';
+      };
     };
 
 
diff --git a/nixos/modules/services/web-apps/mediawiki.nix b/nixos/modules/services/web-apps/mediawiki.nix
index 5bd5977e592..ec2568bf952 100644
--- a/nixos/modules/services/web-apps/mediawiki.nix
+++ b/nixos/modules/services/web-apps/mediawiki.nix
@@ -312,17 +312,17 @@ in
       };
 
       poolConfig = mkOption {
-        type = types.lines;
-        default = ''
-          pm = dynamic
-          pm.max_children = 32
-          pm.start_servers = 2
-          pm.min_spare_servers = 2
-          pm.max_spare_servers = 4
-          pm.max_requests = 500
-        '';
+        type = with types; attrsOf (oneOf [ str int bool ]);
+        default = {
+          "pm" = "dynamic";
+          "pm.max_children" = 32;
+          "pm.start_servers" = 2;
+          "pm.min_spare_servers" = 2;
+          "pm.max_spare_servers" = 4;
+          "pm.max_requests" = 500;
+        };
         description = ''
-          Options for MediaWiki's PHP pool. See the documentation on <literal>php-fpm.conf</literal>
+          Options for the MediaWiki PHP pool. See the documentation on <literal>php-fpm.conf</literal>
           for details on configuration directives.
         '';
       };
@@ -379,17 +379,12 @@ in
     };
 
     services.phpfpm.pools.mediawiki = {
-      listen = "/run/phpfpm/mediawiki.sock";
-      extraConfig = ''
-        listen.owner = ${config.services.httpd.user}
-        listen.group = ${config.services.httpd.group}
-        user = ${user}
-        group = ${group}
-
-        env[MEDIAWIKI_CONFIG] = ${mediawikiConfig}
-
-        ${cfg.poolConfig}
-      '';
+      inherit user group;
+      phpEnv.MEDIAWIKI_CONFIG = "${mediawikiConfig}";
+      settings = {
+        "listen.owner" = config.services.httpd.user;
+        "listen.group" = config.services.httpd.group;
+      } // cfg.poolConfig;
     };
 
     services.httpd = {
@@ -403,7 +398,7 @@ in
             <Directory "${pkg}/share/mediawiki">
               <FilesMatch "\.php$">
                 <If "-f %{REQUEST_FILENAME}">
-                  SetHandler "proxy:unix:${fpm.listen}|fcgi://localhost/"
+                  SetHandler "proxy:unix:${fpm.socket}|fcgi://localhost/"
                 </If>
               </FilesMatch>
 
diff --git a/nixos/modules/services/web-apps/nextcloud.nix b/nixos/modules/services/web-apps/nextcloud.nix
index a0214a75d93..ada14ad3929 100644
--- a/nixos/modules/services/web-apps/nextcloud.nix
+++ b/nixos/modules/services/web-apps/nextcloud.nix
@@ -4,6 +4,7 @@ with lib;
 
 let
   cfg = config.services.nextcloud;
+  fpm = config.services.phpfpm.pools.nextcloud;
 
   phpPackage = pkgs.php73;
   phpPackages = pkgs.php73Packages;
@@ -410,25 +411,20 @@ in {
       };
 
       services.phpfpm = {
-        pools.nextcloud = let
-          phpAdminValues = (toKeyValue
-            (foldr (a: b: a // b) {}
-              (mapAttrsToList (k: v: { "php_admin_value[${k}]" = v; })
-                phpOptions)));
-        in {
-          phpOptions = phpOptionsExtensions;
+        pools.nextcloud = {
+          user = "nextcloud";
+          group = "nginx";
+          phpOptions = phpOptionsExtensions + phpOptionsStr;
           phpPackage = phpPackage;
-          listen = "/run/phpfpm/nextcloud";
-          extraConfig = ''
-            listen.owner = nginx
-            listen.group = nginx
-            user = nextcloud
-            group = nginx
-            ${cfg.poolConfig}
-            env[NEXTCLOUD_CONFIG_DIR] = ${cfg.home}/config
-            env[PATH] = /run/wrappers/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin:/usr/bin:/bin
-            ${phpAdminValues}
-          '';
+          phpEnv = {
+            NEXTCLOUD_CONFIG_DIR = "${cfg.home}/config";
+            PATH = "/run/wrappers/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin:/usr/bin:/bin";
+          };
+          settings = mapAttrs (name: mkDefault) {
+            "listen.owner" = "nginx";
+            "listen.group" = "nginx";
+          };
+          extraConfig = cfg.poolConfig;
         };
       };
 
@@ -489,7 +485,7 @@ in {
                   fastcgi_param HTTPS ${if cfg.https then "on" else "off"};
                   fastcgi_param modHeadersAvailable true;
                   fastcgi_param front_controller_active true;
-                  fastcgi_pass unix:/run/phpfpm/nextcloud;
+                  fastcgi_pass unix:${fpm.socket};
                   fastcgi_intercept_errors on;
                   fastcgi_request_buffering off;
                   fastcgi_read_timeout 120s;
diff --git a/nixos/modules/services/web-apps/restya-board.nix b/nixos/modules/services/web-apps/restya-board.nix
index b200a89260a..6a1b4143bc1 100644
--- a/nixos/modules/services/web-apps/restya-board.nix
+++ b/nixos/modules/services/web-apps/restya-board.nix
@@ -9,11 +9,11 @@ with lib;
 
 let
   cfg = config.services.restya-board;
+  fpm = config.services.phpfpm.pools.${poolName};
 
   runDir = "/run/restya-board";
 
   poolName = "restya-board";
-  phpfpmSocketName = "/run/phpfpm/${poolName}.sock";
 
 in
 
@@ -180,7 +180,7 @@ in
 
     services.phpfpm.pools = {
       "${poolName}" = {
-        listen = phpfpmSocketName;
+        inherit (cfg) user group;
         phpOptions = ''
           date.timezone = "CET"
 
@@ -191,20 +191,18 @@ in
             auth_password = ${cfg.email.password}
           ''}
         '';
-        extraConfig = ''
-          listen.owner = nginx
-          listen.group = nginx
-          listen.mode = 0600
-          user = ${cfg.user}
-          group = ${cfg.group}
-          pm = dynamic
-          pm.max_children = 75
-          pm.start_servers = 10
-          pm.min_spare_servers = 5
-          pm.max_spare_servers = 20
-          pm.max_requests = 500
-          catch_workers_output = 1
-        '';
+        settings = mapAttrs (name: mkDefault) {
+          "listen.owner" = "nginx";
+          "listen.group" = "nginx";
+          "listen.mode" = "0600";
+          "pm" = "dynamic";
+          "pm.max_children" = 75;
+          "pm.start_servers" = 10;
+          "pm.min_spare_servers" = 5;
+          "pm.max_spare_servers" = 20;
+          "pm.max_requests" = 500;
+          "catch_workers_output" = 1;
+        };
       };
     };
 
@@ -241,7 +239,7 @@ in
         tryFiles = "$uri =404";
         extraConfig = ''
           include ${pkgs.nginx}/conf/fastcgi_params;
-          fastcgi_pass    unix:${phpfpmSocketName};
+          fastcgi_pass    unix:${fpm.socket};
           fastcgi_index   index.php;
           fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
           fastcgi_param   PHP_VALUE "upload_max_filesize=9G \n post_max_size=9G \n max_execution_time=200 \n max_input_time=200 \n memory_limit=256M";
diff --git a/nixos/modules/services/web-apps/selfoss.nix b/nixos/modules/services/web-apps/selfoss.nix
index cd0f743a5fb..56b7cafffe8 100644
--- a/nixos/modules/services/web-apps/selfoss.nix
+++ b/nixos/modules/services/web-apps/selfoss.nix
@@ -4,7 +4,6 @@ let
   cfg = config.services.selfoss;
 
   poolName = "selfoss_pool";
-  phpfpmSocketName = "/run/phpfpm/${poolName}.sock";
 
   dataDir = "/var/lib/selfoss";
 
@@ -116,21 +115,22 @@ in
 
   config = mkIf cfg.enable {
 
-    services.phpfpm.poolConfigs = mkIf (cfg.pool == "${poolName}") {
-      "${poolName}" = ''
-        listen = "${phpfpmSocketName}";
-        listen.owner = nginx
-        listen.group = nginx
-        listen.mode = 0600
-        user = nginx
-        pm = dynamic
-        pm.max_children = 75
-        pm.start_servers = 10
-        pm.min_spare_servers = 5
-        pm.max_spare_servers = 20
-        pm.max_requests = 500
-        catch_workers_output = 1
-      '';
+    services.phpfpm.pools = mkIf (cfg.pool == "${poolName}") {
+      "${poolName}" = {
+        user = "nginx";
+        settings = mapAttrs (name: mkDefault) {
+          "listen.owner" = "nginx";
+          "listen.group" = "nginx";
+          "listen.mode" = "0600";
+          "pm" = "dynamic";
+          "pm.max_children" = 75;
+          "pm.start_servers" = 10;
+          "pm.min_spare_servers" = 5;
+          "pm.max_spare_servers" = 20;
+          "pm.max_requests" = 500;
+          "catch_workers_output" = 1;
+        };
+      };
     };
 
     systemd.services.selfoss-config = {
diff --git a/nixos/modules/services/web-apps/tt-rss.nix b/nixos/modules/services/web-apps/tt-rss.nix
index 1bd9de93735..59b0ee1addc 100644
--- a/nixos/modules/services/web-apps/tt-rss.nix
+++ b/nixos/modules/services/web-apps/tt-rss.nix
@@ -521,20 +521,19 @@ let
 
     services.phpfpm.pools = mkIf (cfg.pool == "${poolName}") {
       "${poolName}" = {
-        listen = "/var/run/phpfpm/${poolName}.sock";
-        extraConfig = ''
-          listen.owner = nginx
-          listen.group = nginx
-          listen.mode = 0600
-          user = ${cfg.user}
-          pm = dynamic
-          pm.max_children = 75
-          pm.start_servers = 10
-          pm.min_spare_servers = 5
-          pm.max_spare_servers = 20
-          pm.max_requests = 500
-          catch_workers_output = 1
-        '';
+        inherit (cfg) user;
+        settings = mapAttrs (name: mkDefault) {
+          "listen.owner" = "nginx";
+          "listen.group" = "nginx";
+          "listen.mode" = "0600";
+          "pm" = "dynamic";
+          "pm.max_children" = 75;
+          "pm.start_servers" = 10;
+          "pm.min_spare_servers" = 5;
+          "pm.max_spare_servers" = 20;
+          "pm.max_requests" = 500;
+          "catch_workers_output" = 1;
+        };
       };
     };
 
@@ -552,7 +551,7 @@ let
           locations."~ \.php$" = {
             extraConfig = ''
               fastcgi_split_path_info ^(.+\.php)(/.+)$;
-              fastcgi_pass unix:${config.services.phpfpm.pools.${cfg.pool}.listen};
+              fastcgi_pass unix:${config.services.phpfpm.pools.${cfg.pool}.socket};
               fastcgi_index index.php;
             '';
           };
diff --git a/nixos/modules/services/web-apps/wordpress.nix b/nixos/modules/services/web-apps/wordpress.nix
index 624b0089a03..98dc8458818 100644
--- a/nixos/modules/services/web-apps/wordpress.nix
+++ b/nixos/modules/services/web-apps/wordpress.nix
@@ -216,15 +216,15 @@ let
         };
 
         poolConfig = mkOption {
-          type = types.lines;
-          default = ''
-            pm = dynamic
-            pm.max_children = 32
-            pm.start_servers = 2
-            pm.min_spare_servers = 2
-            pm.max_spare_servers = 4
-            pm.max_requests = 500
-          '';
+          type = with types; attrsOf (oneOf [ str int bool ]);
+          default = {
+            "pm" = "dynamic";
+            "pm.max_children" = 32;
+            "pm.start_servers" = 2;
+            "pm.min_spare_servers" = 2;
+            "pm.max_spare_servers" = 4;
+            "pm.max_requests" = 500;
+          };
           description = ''
             Options for the WordPress PHP pool. See the documentation on <literal>php-fpm.conf</literal>
             for details on configuration directives.
@@ -280,15 +280,11 @@ in
 
     services.phpfpm.pools = mapAttrs' (hostName: cfg: (
       nameValuePair "wordpress-${hostName}" {
-        listen = "/run/phpfpm/wordpress-${hostName}.sock";
-        extraConfig = ''
-          listen.owner = ${config.services.httpd.user}
-          listen.group = ${config.services.httpd.group}
-          user = ${user}
-          group = ${group}
-
-          ${cfg.poolConfig}
-        '';
+        inherit user group;
+        settings = {
+          "listen.owner" = config.services.httpd.user;
+          "listen.group" = config.services.httpd.group;
+        } // cfg.poolConfig;
       }
     )) eachSite;
 
@@ -303,7 +299,7 @@ in
               <Directory "${pkg hostName cfg}/share/wordpress">
                 <FilesMatch "\.php$">
                   <If "-f %{REQUEST_FILENAME}">
-                    SetHandler "proxy:unix:/run/phpfpm/wordpress-${hostName}.sock|fcgi://localhost/"
+                    SetHandler "proxy:unix:${config.services.phpfpm.pools."wordpress-${hostName}".socket}|fcgi://localhost/"
                   </If>
                 </FilesMatch>
 
diff --git a/nixos/modules/services/web-apps/zabbix.nix b/nixos/modules/services/web-apps/zabbix.nix
index 4b5334579a9..fa358ffafbc 100644
--- a/nixos/modules/services/web-apps/zabbix.nix
+++ b/nixos/modules/services/web-apps/zabbix.nix
@@ -133,15 +133,15 @@ in
       };
 
       poolConfig = mkOption {
-        type = types.lines;
-        default = ''
-          pm = dynamic
-          pm.max_children = 32
-          pm.start_servers = 2
-          pm.min_spare_servers = 2
-          pm.max_spare_servers = 4
-          pm.max_requests = 500
-        '';
+        type = with types; attrsOf (oneOf [ str int bool ]);
+        default = {
+          "pm" = "dynamic";
+          "pm.max_children" = 32;
+          "pm.start_servers" = 2;
+          "pm.min_spare_servers" = 2;
+          "pm.max_spare_servers" = 4;
+          "pm.max_requests" = 500;
+        };
         description = ''
           Options for the Zabbix PHP pool. See the documentation on <literal>php-fpm.conf</literal> for details on configuration directives.
         '';
@@ -160,6 +160,8 @@ in
     ];
 
     services.phpfpm.pools.zabbix = {
+      inherit user;
+      group = config.services.httpd.group;
       phpOptions = ''
         # https://www.zabbix.com/documentation/current/manual/installation/install
         memory_limit = 128M
@@ -177,15 +179,11 @@ in
       '' + optionalString (cfg.database.type == "oracle") ''
         extension=${pkgs.phpPackages.oci8}/lib/php/extensions/oci8.so
       '';
-      listen = "/run/phpfpm/zabbix.sock";
-      extraConfig = ''
-        listen.owner = ${config.services.httpd.user};
-        listen.group = ${config.services.httpd.group};
-        user = ${user};
-        group = ${config.services.httpd.group};
-        env[ZABBIX_CONFIG] = ${zabbixConfig}
-        ${cfg.poolConfig}
-      '';
+      phpEnv.ZABBIX_CONFIG = zabbixConfig;
+      settings = {
+        "listen.owner" = config.services.httpd.user;
+        "listen.group" = config.services.httpd.group;
+      } // cfg.poolConfig;
     };
 
     services.httpd = {
diff --git a/nixos/modules/services/web-servers/phpfpm/default.nix b/nixos/modules/services/web-servers/phpfpm/default.nix
index ffafbc5e92f..e95e71e0d99 100644
--- a/nixos/modules/services/web-servers/phpfpm/default.nix
+++ b/nixos/modules/services/web-servers/phpfpm/default.nix
@@ -4,41 +4,27 @@ with lib;
 
 let
   cfg = config.services.phpfpm;
-  enabled = cfg.poolConfigs != {} || cfg.pools != {};
 
-  stateDir = "/run/phpfpm";
+  runtimeDir = "/run/phpfpm";
 
-  poolConfigs =
-    (mapAttrs mapPoolConfig cfg.poolConfigs) //
-    (mapAttrs mapPool cfg.pools);
+  toStr = value:
+    if true == value then "yes"
+    else if false == value then "no"
+    else toString value;
 
-  mapPoolConfig = n: p: {
-    phpPackage = cfg.phpPackage;
-    phpOptions = cfg.phpOptions;
-    config = p;
-  };
-
-  mapPool = n: p: {
-    phpPackage = p.phpPackage;
-    phpOptions = p.phpOptions;
-    config = ''
-      listen = ${p.listen}
-      ${p.extraConfig}
-    '';
-  };
-
-  fpmCfgFile = pool: conf: pkgs.writeText "phpfpm-${pool}.conf" ''
+  fpmCfgFile = pool: poolOpts: pkgs.writeText "phpfpm-${pool}.conf" ''
     [global]
-    error_log = syslog
-    daemonize = no
-    ${cfg.extraConfig}
+    ${concatStringsSep "\n" (mapAttrsToList (n: v: "${n} = ${toStr v}") cfg.settings)}
+    ${optionalString (cfg.extraConfig != null) cfg.extraConfig}
 
     [${pool}]
-    ${conf}
+    ${concatStringsSep "\n" (mapAttrsToList (n: v: "${n} = ${toStr v}") poolOpts.settings)}
+    ${concatStringsSep "\n" (mapAttrsToList (n: v: "env[${n}] = ${toStr v}") poolOpts.phpEnv)}
+    ${optionalString (poolOpts.extraConfig != null) poolOpts.extraConfig}
   '';
 
-  phpIni = pool: pkgs.runCommand "php.ini" {
-    inherit (pool) phpPackage phpOptions;
+  phpIni = poolOpts: pkgs.runCommand "php.ini" {
+    inherit (poolOpts) phpPackage phpOptions;
     preferLocalBuild = true;
     nixDefaults = ''
       sendmail_path = "/run/wrappers/bin/sendmail -t -i"
@@ -48,13 +34,138 @@ let
     cat $phpPackage/etc/php.ini $nixDefaultsPath $phpOptionsPath > $out
   '';
 
+  poolOpts = { name, ... }:
+    let
+      poolOpts = cfg.pools."${name}";
+    in
+    {
+      options = {
+        socket = mkOption {
+          type = types.str;
+          readOnly = true;
+          description = ''
+            Path to the unix socket file on which to accept FastCGI requests.
+            <note><para>This option is read-only and managed by NixOS.</para></note>
+          '';
+        };
+
+        listen = mkOption {
+          type = types.str;
+          default = "";
+          example = "/path/to/unix/socket";
+          description = ''
+            The address on which to accept FastCGI requests.
+          '';
+        };
+
+        phpPackage = mkOption {
+          type = types.package;
+          default = cfg.phpPackage;
+          defaultText = "config.services.phpfpm.phpPackage";
+          description = ''
+            The PHP package to use for running this PHP-FPM pool.
+          '';
+        };
+
+        phpOptions = mkOption {
+          type = types.lines;
+          default = cfg.phpOptions;
+          defaultText = "config.services.phpfpm.phpOptions";
+          description = ''
+            "Options appended to the PHP configuration file <filename>php.ini</filename> used for this PHP-FPM pool."
+          '';
+        };
+
+        phpEnv = lib.mkOption {
+          type = with types; attrsOf str;
+          default = {};
+          description = ''
+            Environment variables used for this PHP-FPM pool.
+          '';
+          example = literalExample ''
+            {
+              HOSTNAME = "$HOSTNAME";
+              TMP = "/tmp";
+              TMPDIR = "/tmp";
+              TEMP = "/tmp";
+            }
+          '';
+        };
+
+        user = mkOption {
+          type = types.str;
+          description = "User account under which this pool runs.";
+        };
+
+        group = mkOption {
+          type = types.str;
+          description = "Group account under which this pool runs.";
+        };
+
+        settings = mkOption {
+          type = with types; attrsOf (oneOf [ str int bool ]);
+          default = {};
+          description = ''
+            PHP-FPM pool directives. Refer to the "List of pool directives" section of
+            <link xlink:href="https://www.php.net/manual/en/install.fpm.configuration.php"/>
+            for details. Note that settings names must be enclosed in quotes (e.g.
+            <literal>"pm.max_children"</literal> instead of <literal>pm.max_children</literal>).
+          '';
+          example = literalExample ''
+            {
+              "pm" = "dynamic";
+              "pm.max_children" = 75;
+              "pm.start_servers" = 10;
+              "pm.min_spare_servers" = 5;
+              "pm.max_spare_servers" = 20;
+              "pm.max_requests" = 500;
+            }
+          '';
+        };
+
+        extraConfig = mkOption {
+          type = with types; nullOr lines;
+          default = null;
+          description = ''
+            Extra lines that go into the pool configuration.
+            See the documentation on <literal>php-fpm.conf</literal> for
+            details on configuration directives.
+          '';
+        };
+      };
+
+      config = {
+        socket = if poolOpts.listen == "" then "${runtimeDir}/${name}.sock" else poolOpts.listen;
+        group = mkDefault poolOpts.user;
+
+        settings = mapAttrs (name: mkDefault){
+          listen = poolOpts.socket;
+          user = poolOpts.user;
+          group = poolOpts.group;
+        };
+      };
+    };
+
 in {
 
   options = {
     services.phpfpm = {
+      settings = mkOption {
+        type = with types; attrsOf (oneOf [ str int bool ]);
+        default = {};
+        description = ''
+          PHP-FPM global directives. Refer to the "List of global php-fpm.conf directives" section of
+          <link xlink:href="https://www.php.net/manual/en/install.fpm.configuration.php"/>
+          for details. Note that settings names must be enclosed in quotes (e.g.
+          <literal>"pm.max_children"</literal> instead of <literal>pm.max_children</literal>).
+          You need not specify the options <literal>error_log</literal> or
+          <literal>daemonize</literal> here, since they are generated by NixOS.
+        '';
+      };
+
       extraConfig = mkOption {
-        type = types.lines;
-        default = "";
+        type = with types; nullOr lines;
+        default = null;
         description = ''
           Extra configuration that should be put in the global section of
           the PHP-FPM configuration file. Do not specify the options
@@ -80,64 +191,56 @@ in {
           ''
             date.timezone = "CET"
           '';
-        description =
-          "Options appended to the PHP configuration file <filename>php.ini</filename>.";
-      };
-
-      poolConfigs = mkOption {
-        default = {};
-        type = types.attrsOf types.lines;
-        example = literalExample ''
-          { mypool = '''
-              listen = /run/phpfpm/mypool
-              user = nobody
-              pm = dynamic
-              pm.max_children = 75
-              pm.start_servers = 10
-              pm.min_spare_servers = 5
-              pm.max_spare_servers = 20
-              pm.max_requests = 500
-            ''';
-          }
-        '';
         description = ''
-          A mapping between PHP-FPM pool names and their configurations.
-          See the documentation on <literal>php-fpm.conf</literal> for
-          details on configuration directives. If no pools are defined,
-          the phpfpm service is disabled.
+          Options appended to the PHP configuration file <filename>php.ini</filename>.
         '';
       };
 
       pools = mkOption {
-        type = types.attrsOf (types.submodule (import ./pool-options.nix {
-          inherit lib config;
-        }));
+        type = types.attrsOf (types.submodule poolOpts);
         default = {};
         example = literalExample ''
          {
            mypool = {
-             listen = "/path/to/unix/socket";
+             user = "php";
+             group = "php";
              phpPackage = pkgs.php;
-             extraConfig = '''
-               user = nobody
-               pm = dynamic
-               pm.max_children = 75
-               pm.start_servers = 10
-               pm.min_spare_servers = 5
-               pm.max_spare_servers = 20
-               pm.max_requests = 500
+             settings = '''
+               "pm" = "dynamic";
+               "pm.max_children" = 75;
+               "pm.start_servers" = 10;
+               "pm.min_spare_servers" = 5;
+               "pm.max_spare_servers" = 20;
+               "pm.max_requests" = 500;
              ''';
            }
          }'';
         description = ''
-          PHP-FPM pools. If no pools or poolConfigs are defined, the PHP-FPM
+          PHP-FPM pools. If no pools are defined, the PHP-FPM
           service is disabled.
         '';
       };
     };
   };
 
-  config = mkIf enabled {
+  config = mkIf (cfg.pools != {}) {
+
+    warnings =
+      mapAttrsToList (pool: poolOpts: ''
+        Using config.services.phpfpm.pools.${pool}.listen is deprecated and will become unsupported in a future release. Please reference the read-only option config.services.phpfpm.pools.${pool}.socket to access the path of your socket.
+      '') (filterAttrs (pool: poolOpts: poolOpts.listen != "") cfg.pools) ++
+      mapAttrsToList (pool: poolOpts: ''
+        Using config.services.phpfpm.pools.${pool}.extraConfig is deprecated and will become unsupported in a future release. Please migrate your configuration to config.services.phpfpm.pools.${pool}.settings.
+      '') (filterAttrs (pool: poolOpts: poolOpts.extraConfig != null) cfg.pools) ++
+      optional (cfg.extraConfig != null) ''
+        Using config.services.phpfpm.extraConfig is deprecated and will become unsupported in a future release. Please migrate your configuration to config.services.phpfpm.settings.
+      ''
+    ;
+
+    services.phpfpm.settings = {
+      error_log = "syslog";
+      daemonize = false;
+    };
 
     systemd.slices.phpfpm = {
       description = "PHP FastCGI Process manager pools slice";
@@ -148,18 +251,15 @@ in {
       wantedBy = [ "multi-user.target" ];
     };
 
-    systemd.services = flip mapAttrs' poolConfigs (pool: poolConfig:
+    systemd.services = mapAttrs' (pool: poolOpts:
       nameValuePair "phpfpm-${pool}" {
         description = "PHP FastCGI Process Manager service for pool ${pool}";
         after = [ "network.target" ];
         wantedBy = [ "phpfpm.target" ];
         partOf = [ "phpfpm.target" ];
-        preStart = ''
-          mkdir -p ${stateDir}
-        '';
         serviceConfig = let
-          cfgFile = fpmCfgFile pool poolConfig.config;
-          iniFile = phpIni poolConfig;
+          cfgFile = fpmCfgFile pool poolOpts;
+          iniFile = phpIni poolOpts;
         in {
           Slice = "phpfpm.slice";
           PrivateDevices = true;
@@ -168,10 +268,12 @@ in {
           # XXX: We need AF_NETLINK to make the sendmail SUID binary from postfix work
           RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6 AF_NETLINK";
           Type = "notify";
-          ExecStart = "${poolConfig.phpPackage}/bin/php-fpm -y ${cfgFile} -c ${iniFile}";
+          ExecStart = "${poolOpts.phpPackage}/bin/php-fpm -y ${cfgFile} -c ${iniFile}";
           ExecReload = "${pkgs.coreutils}/bin/kill -USR2 $MAINPID";
+          RuntimeDirectory = "phpfpm";
+          RuntimeDirectoryPreserve = true; # Relevant when multiple processes are running
         };
       }
-   );
+    ) cfg.pools;
   };
 }
diff --git a/nixos/modules/services/web-servers/phpfpm/pool-options.nix b/nixos/modules/services/web-servers/phpfpm/pool-options.nix
deleted file mode 100644
index d9ad7eff71f..00000000000
--- a/nixos/modules/services/web-servers/phpfpm/pool-options.nix
+++ /dev/null
@@ -1,57 +0,0 @@
-{ lib, config }:
-
-let
-  fpmCfg = config.services.phpfpm;
-in
-
-with lib; {
-
-  options = {
-
-    listen = mkOption {
-      type = types.str;
-      example = "/path/to/unix/socket";
-      description = ''
-        The address on which to accept FastCGI requests.
-      '';
-    };
-
-    phpPackage = mkOption {
-      type = types.package;
-      default = fpmCfg.phpPackage;
-      defaultText = "config.services.phpfpm.phpPackage";
-      description = ''
-        The PHP package to use for running this PHP-FPM pool.
-      '';
-    };
-
-    phpOptions = mkOption {
-      type = types.lines;
-      default = fpmCfg.phpOptions;
-      defaultText = "config.services.phpfpm.phpOptions";
-      description = ''
-        "Options appended to the PHP configuration file <filename>php.ini</filename> used for this PHP-FPM pool."
-      '';
-    };
-
-    extraConfig = mkOption {
-      type = types.lines;
-      example = ''
-        user = nobody
-        pm = dynamic
-        pm.max_children = 75
-        pm.start_servers = 10
-        pm.min_spare_servers = 5
-        pm.max_spare_servers = 20
-        pm.max_requests = 500
-      '';
-
-      description = ''
-        Extra lines that go into the pool configuration.
-        See the documentation on <literal>php-fpm.conf</literal> for
-        details on configuration directives.
-      '';
-    };
-  };
-}
-
diff --git a/nixos/modules/services/x11/desktop-managers/gnome3.nix b/nixos/modules/services/x11/desktop-managers/gnome3.nix
index 6434731d951..b18d06a095d 100644
--- a/nixos/modules/services/x11/desktop-managers/gnome3.nix
+++ b/nixos/modules/services/x11/desktop-managers/gnome3.nix
@@ -29,10 +29,10 @@ let
      chmod -R a+w $out/share/gsettings-schemas/nixos-gsettings-overrides
      cat - > $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas/nixos-defaults.gschema.override <<- EOF
        [org.gnome.desktop.background]
-       picture-uri='${pkgs.nixos-artwork.wallpapers.simple-dark-gray}/share/artwork/gnome/nix-wallpaper-simple-dark-gray.png'
+       picture-uri='file://${pkgs.nixos-artwork.wallpapers.simple-dark-gray}/share/artwork/gnome/nix-wallpaper-simple-dark-gray.png'
 
        [org.gnome.desktop.screensaver]
-       picture-uri='${pkgs.nixos-artwork.wallpapers.simple-dark-gray-bottom}/share/artwork/gnome/nix-wallpaper-simple-dark-gray_bottom.png'
+       picture-uri='file://${pkgs.nixos-artwork.wallpapers.simple-dark-gray-bottom}/share/artwork/gnome/nix-wallpaper-simple-dark-gray_bottom.png'
 
        [org.gnome.shell]
        favorite-apps=[ 'org.gnome.Epiphany.desktop', 'evolution.desktop', 'org.gnome.Music.desktop', 'org.gnome.Photos.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Software.desktop' ]
diff --git a/nixos/modules/virtualisation/libvirtd.nix b/nixos/modules/virtualisation/libvirtd.nix
index 394b4ce5656..16b79d86919 100644
--- a/nixos/modules/virtualisation/libvirtd.nix
+++ b/nixos/modules/virtualisation/libvirtd.nix
@@ -104,6 +104,18 @@ in {
       '';
     };
 
+    onBoot = mkOption {
+      type = types.enum ["start" "ignore" ];
+      default = "start";
+      description = ''
+        Specifies the action to be done to / on the guests when the host boots.
+        The "start" option starts all guests that were running prior to shutdown
+        regardless of their autostart settings. The "ignore" option will not
+        start the formally running guest on boot. However, any guest marked as
+        autostart will still be automatically started by libvirtd.
+      '';
+    };
+
     onShutdown = mkOption {
       type = types.enum ["shutdown" "suspend" ];
       default = "suspend";
@@ -221,6 +233,7 @@ in {
       path = with pkgs; [ coreutils libvirt gawk ];
       restartIfChanged = false;
 
+      environment.ON_BOOT = "${cfg.onBoot}";
       environment.ON_SHUTDOWN = "${cfg.onShutdown}";
     };
 
diff --git a/pkgs/applications/editors/android-studio/default.nix b/pkgs/applications/editors/android-studio/default.nix
index 75fb206c9e5..7f57d24b263 100644
--- a/pkgs/applications/editors/android-studio/default.nix
+++ b/pkgs/applications/editors/android-studio/default.nix
@@ -14,9 +14,9 @@ let
   };
   betaVersion = stableVersion;
   latestVersion = { # canary & dev
-    version = "3.6.0.6"; # "Android Studio 3.6 Canary 6"
-    build = "192.5787298";
-    sha256Hash = "1rri8b5nkxj65hq13s5d31fy08llf3ad9s5mn56ridd4nsy2c5df";
+    version = "3.6.0.7"; # "Android Studio 3.6 Canary 7"
+    build = "192.5807797";
+    sha256Hash = "1l47miiyd8z7v0hbvda06953pp9ilyrsma83gxqx35ghnc0n7g81";
   };
 in rec {
   # Attributes are named by their corresponding release channels
diff --git a/pkgs/applications/misc/megasync/default.nix b/pkgs/applications/misc/megasync/default.nix
index ee6cfdb729f..8fcaf91ac98 100644
--- a/pkgs/applications/misc/megasync/default.nix
+++ b/pkgs/applications/misc/megasync/default.nix
@@ -15,15 +15,19 @@
 , libuv
 , libzen
 , lsb-release
+, mkDerivation
 , pkgconfig
-, qt5
+, qmake
+, qtbase
+, qtsvg
+, qttools
 , sqlite
 , swig
 , unzip
 , wget
 }:
 
-stdenv.mkDerivation rec {
+mkDerivation rec {
   pname = "megasync";
   version = "4.1.1.0";
 
@@ -41,8 +45,8 @@ stdenv.mkDerivation rec {
     doxygen
     lsb-release
     pkgconfig
-    qt5.qmake
-    qt5.qttools
+    qmake
+    qttools
     swig
   ];
   buildInputs = [
@@ -57,8 +61,8 @@ stdenv.mkDerivation rec {
     libtool
     libuv
     libzen
-    qt5.qtbase
-    qt5.qtsvg
+    qtbase
+    qtsvg
     sqlite
     unzip
     wget
diff --git a/pkgs/applications/misc/netsurf/buildsystem/default.nix b/pkgs/applications/misc/netsurf/buildsystem/default.nix
index 24377028ce7..36d5a70735a 100644
--- a/pkgs/applications/misc/netsurf/buildsystem/default.nix
+++ b/pkgs/applications/misc/netsurf/buildsystem/default.nix
@@ -3,11 +3,11 @@
 stdenv.mkDerivation rec {
 
   pname = "netsurf-buildsystem";
-  version = "1.7";
+  version = "1.8";
 
   src = fetchurl {
     url = "http://download.netsurf-browser.org/libs/releases/buildsystem-${version}.tar.gz";
-    sha256 = "1q23aaycv35ma5471l1gxib8lfq2s9kprrkaqgfc926d04rlbmhw";
+    sha256 = "0ffdjwskxlnh8sk40qqfgksbb1nrdzfxsshrscra0p4nqpkj98z6";
   };
 
   makeFlags = [
diff --git a/pkgs/applications/networking/irc/irccloud/default.nix b/pkgs/applications/networking/irc/irccloud/default.nix
new file mode 100644
index 00000000000..5648d027d9e
--- /dev/null
+++ b/pkgs/applications/networking/irc/irccloud/default.nix
@@ -0,0 +1,38 @@
+{ appimageTools, fetchurl, lib }:
+
+let
+  pname = "irccloud";
+  version = "0.13.0";
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    url = "https://github.com/irccloud/irccloud-desktop/releases/download/v${version}/IRCCloud-${version}-linux-x86_64.AppImage";
+    sha256 = "0ff69m5jav2c90918avsr5wvik2gds3klij3dzhkb352fgrd1s0l";
+  };
+
+  appimageContents = appimageTools.extractType2 {
+    inherit name src;
+  };
+
+in appimageTools.wrapType2 rec {
+  inherit name src;
+
+  extraPkgs = pkgs: with pkgs; [ at-spi2-core ];
+
+  extraInstallCommands = ''
+    mv $out/bin/${name} $out/bin/${pname}
+    install -m 444 -D ${appimageContents}/irccloud.desktop $out/share/applications/irccloud.desktop
+    install -m 444 -D ${appimageContents}/usr/share/icons/hicolor/512x512/apps/irccloud.png \
+      $out/share/icons/hicolor/512x512/apps/irccloud.png
+    substituteInPlace $out/share/applications/irccloud.desktop \
+      --replace 'Exec=AppRun' 'Exec=${pname}'
+  '';
+
+  meta = with lib; {
+    description = "A desktop client for IRCCloud";
+    homepage = "https://www.irccloud.com";
+    license = licenses.asl20;
+    platforms = [ "x86_64-linux" ];
+    maintainers = with maintainers; [ lightbulbjim ];
+  };
+}
diff --git a/pkgs/applications/networking/irc/weechat/scripts/default.nix b/pkgs/applications/networking/irc/weechat/scripts/default.nix
index 439e0e11614..cd9ecbf4337 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/default.nix
@@ -6,7 +6,7 @@
   };
 
   weechat-matrix-bridge = callPackage ./weechat-matrix-bridge {
-    inherit (luaPackages) cjson;
+    inherit (luaPackages) cjson luaffi;
   };
 
   wee-slack = callPackage ./wee-slack {
diff --git a/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix b/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix
index 233fe418df3..ea5052f37a3 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/weechat-matrix-bridge/default.nix
@@ -31,9 +31,9 @@ stdenv.mkDerivation {
     mkdir -p $out/{share,lib}
 
     cp {matrix.lua,olm.lua} $out/share
-    cp ${cjson}/lib/lua/5.2/cjson.so $out/lib/cjson.so
+    cp ${cjson}/lib/lua/${cjson.lua.luaversion}/cjson.so $out/lib/cjson.so
     cp ${olm}/lib/libolm.so $out/lib/libolm.so
-    cp ${luaffi}/lib/ffi.so $out/lib/ffi.so
+    cp ${luaffi}/lib/lua/${luaffi.lua.luaversion}/ffi.so $out/lib/ffi.so
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/applications/networking/modem-manager-gui/default.nix b/pkgs/applications/networking/modem-manager-gui/default.nix
index 2e61753346d..6dcc35f44d3 100644
--- a/pkgs/applications/networking/modem-manager-gui/default.nix
+++ b/pkgs/applications/networking/modem-manager-gui/default.nix
@@ -1,4 +1,19 @@
-{ stdenv, pkgconfig, python3, fetchhg, gtk3, glib, gdbm, gtkspell3, itstool, libappindicator-gtk3, perlPackages, glibcLocales, meson, ninja }:
+{ stdenv
+, pkgconfig
+, python3
+, fetchhg
+, gtk3
+, glib
+, gdbm
+, gtkspell3
+, ofono
+, itstool
+, libappindicator-gtk3
+, perlPackages
+, glibcLocales
+, meson
+, ninja
+}:
 
 stdenv.mkDerivation rec {
   pname = "modem-manager-gui";
@@ -10,14 +25,11 @@ stdenv.mkDerivation rec {
     sha256 = "11iibh36567814h2bz41sa1072b86p1l13xyj670pwkh9k8kw8fd";
   };
 
-  LC_ALL = "en_US.utf-8";
-
   nativeBuildInputs = [
     pkgconfig
     python3
     perlPackages.Po4a
     itstool
-    glibcLocales
     meson
     ninja
   ];
@@ -27,6 +39,7 @@ stdenv.mkDerivation rec {
     glib
     gdbm
     gtkspell3
+    ofono
     libappindicator-gtk3
   ];
 
diff --git a/pkgs/applications/networking/remote/teamviewer/default.nix b/pkgs/applications/networking/remote/teamviewer/default.nix
index cfd8b155514..f9b17b42bde 100644
--- a/pkgs/applications/networking/remote/teamviewer/default.nix
+++ b/pkgs/applications/networking/remote/teamviewer/default.nix
@@ -1,9 +1,9 @@
 { mkDerivation, lib, fetchurl, autoPatchelfHook, makeWrapper, xdg_utils, dbus
-, qtbase, qtwebkit, qtx11extras, qtquickcontrols, glibc, libXrandr, libX11
+, qtbase, qtwebkit, qtx11extras, qtquickcontrols, glibc
+, libXrandr, libX11, libXext, libXdamage, libXtst, libSM, libXfixes
 , wrapQtAppsHook
 }:
 
-
 mkDerivation rec {
   pname = "teamviewer";
   version = "14.5.1691";
@@ -44,8 +44,11 @@ mkDerivation rec {
       --replace '/lib64/ld-linux-x86-64.so.2' '${glibc.out}/lib/ld-linux-x86-64.so.2'
     substituteInPlace $out/share/teamviewer/tv_bin/script/tvw_config \
       --replace '/var/run/' '/run/'
+
     wrapProgram $out/share/teamviewer/tv_bin/script/teamviewer --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ libXrandr libX11 ]}"
     wrapProgram $out/share/teamviewer/tv_bin/teamviewerd --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ libXrandr libX11 ]}"
+    wrapProgram $out/share/teamviewer/tv_bin/TeamViewer --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ libXrandr libX11 ]}"
+    wrapProgram $out/share/teamviewer/tv_bin/TeamViewer_Desktop --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [libXrandr libX11 libXext libXdamage libXtst libSM libXfixes ]}"
 
     wrapQtApp $out/bin/teamviewer
   '';
diff --git a/pkgs/applications/science/robotics/sumorobot-manager/default.nix b/pkgs/applications/science/robotics/sumorobot-manager/default.nix
new file mode 100644
index 00000000000..68b91dafb73
--- /dev/null
+++ b/pkgs/applications/science/robotics/sumorobot-manager/default.nix
@@ -0,0 +1,43 @@
+{ stdenv, python3, qt5, fetchFromGitHub, wrapPython, pyqt5, pyserial }:
+ 
+stdenv.mkDerivation rec {
+  pname = "sumorobot-manager";
+  version = "0.9.0";
+
+  src = fetchFromGitHub {
+    owner = "robokoding";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "03zhb54c259a66hsahmv2ajbzwcjnfjj050wbjhw51zqzxinlgqr";
+  };
+
+  buildInputs = [ python3 ];
+  pythonPath = [
+    pyqt5 pyserial
+  ];
+
+  nativeBuildInputs = [ wrapPython qt5.wrapQtAppsHook ];
+
+  buildPhase = "true";
+
+  installPhase = ''
+    mkdir -p $out/opt/sumorobot-manager
+    cp -r main.py lib res $out/opt/sumorobot-manager
+    chmod -R 644 $out/opt/sumorobot-manager/lib/*
+    mkdir $out/bin
+    makeQtWrapper $out/opt/sumorobot-manager/main.py $out/bin/sumorobot-manager \
+      --run "cd $out/opt/sumorobot-manager"
+  '';
+
+  preFixup = ''
+    patchShebangs $out/opt/sumorobot-manager/main.py
+    wrapPythonProgramsIn "$out/opt" "$pythonPath"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Desktop App for managing SumoRobots";
+    homepage = "https://www.robokoding.com/kits/sumorobot/sumomanager/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ abbradar ];
+  };
+}
diff --git a/pkgs/applications/version-management/bcompare/default.nix b/pkgs/applications/version-management/bcompare/default.nix
new file mode 100644
index 00000000000..3dc7792de2a
--- /dev/null
+++ b/pkgs/applications/version-management/bcompare/default.nix
@@ -0,0 +1,66 @@
+{ autoPatchelfHook, bzip2, cairo, coreutils, fetchurl, gdk-pixbuf, gnome2, gtk2, kcoreaddons, ki18n, kio, kservice, lib, qt4, qt511, qtbase, stdenv, runtimeShell }:
+
+stdenv.mkDerivation rec {
+  pname = "bcompare";
+  version = "4.2.10.23938";
+
+  src = fetchurl {
+    url = "https://www.scootersoftware.com/${pname}-${version}_amd64.deb";
+    sha256 = "1825s1lbaj20d712czmaaqg7mkwfb650r53af2y30j29p6yd4wal";
+  };
+
+  unpackPhase = ''
+    ar x $src
+    tar xfz data.tar.gz
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin $out/lib $out/share
+    cp -R usr/share $out/
+    cp -R usr/lib $out/
+    cp -R usr/bin $out/
+
+    # Remove library that refuses to be autoPatchelf'ed
+    rm $out/lib/beyondcompare/ext/bcompare_ext_kde.amd64.so
+
+    substituteInPlace $out/bin/bcompare \
+      --replace "/usr/lib/beyondcompare" "$out/lib/beyondcompare" \
+      --replace "/bin/bash" "${runtimeShell}"
+
+    # Create symlink bzip2 library
+    ln -s ${bzip2.out}/lib/libbz2.so.1 $out/lib/beyondcompare/libbz2.so.1.0
+  '';
+
+  nativeBuildInputs = [ autoPatchelfHook ];
+
+  buildInputs = [
+    stdenv.cc.cc.lib
+    gtk2
+    gnome2.pango
+    cairo
+    kio
+    kservice
+    ki18n
+    kcoreaddons
+    gdk-pixbuf
+    qt4
+    bzip2
+  ];
+
+  dontBuild = true;
+  dontConfigure = true;
+
+  meta = with stdenv.lib; {
+    description = "GUI application that allows to quickly and easily compare files and folders";
+    longDescription = ''
+      Beyond Compare is focused. Beyond Compare allows you to quickly and easily compare your files and folders.
+      By using simple, powerful commands you can focus on the differences you're interested in and ignore those you're not.
+      You can then merge the changes, synchronize your files, and generate reports for your records.
+    '';
+    homepage = "https://www.scootersoftware.com";
+    license = licenses.unfree;
+    maintainers = [ maintainers.ktor ];
+    platforms = [ "x86_64-linux" ];
+  };
+
+}
diff --git a/pkgs/applications/version-management/git-and-tools/default.nix b/pkgs/applications/version-management/git-and-tools/default.nix
index c7d77bf3498..e64254ed29f 100644
--- a/pkgs/applications/version-management/git-and-tools/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/default.nix
@@ -121,6 +121,8 @@ let
 
   git-stree = callPackage ./git-stree { };
 
+  git-subrepo = callPackage ./git-subrepo { };
+
   git-sync = callPackage ./git-sync { };
 
   git-test = callPackage ./git-test { };
diff --git a/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix b/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix
new file mode 100644
index 00000000000..24a1e1ac937
--- /dev/null
+++ b/pkgs/applications/version-management/git-and-tools/git-subrepo/default.nix
@@ -0,0 +1,58 @@
+{ stdenv, fetchFromGitHub, git, makeWrapper, which }:
+
+stdenv.mkDerivation rec {
+  pname = "git-subrepo";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "ingydotnet";
+    repo = "git-subrepo";
+    rev = version;
+    sha256 = "05m2dm9gq2nggwnxxdyq2kjj584sn2lxk66pr1qhjxnk81awj9l7";
+  };
+
+  nativeBuildInputs = [
+    makeWrapper
+    which
+  ];
+
+  buildInputs = [
+    git
+  ];
+
+  makeFlags = [
+    "PREFIX=${placeholder ''out''}"
+    "INSTALL_LIB=${placeholder ''out''}/bin"
+    "INSTALL_MAN=${placeholder ''out''}/share/man/man1"
+  ];
+
+  patches = [
+    # Allow zsh completion to work even though we aren't installing from a git
+    # clone.  Also submitted upstream as
+    # https://github.com/ingydotnet/git-subrepo/pull/420
+    ./zsh-completion.patch
+  ];
+
+  postInstall = ''
+    ZSH_COMP_DIR="$out/share/zsh/vendor-completions"
+    mkdir -p "$ZSH_COMP_DIR"
+    cp share/zsh-completion/_git-subrepo "$ZSH_COMP_DIR/"
+
+    BASH_COMP_DIR="$out/share/bash-completion/completions"
+    mkdir -p "$BASH_COMP_DIR"
+    cp share/completion.bash "$BASH_COMP_DIR/git-subrepo"
+  '';
+
+  postFixup = ''
+    wrapProgram $out/bin/git-subrepo \
+      --prefix PATH : "${git}/bin"
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/ingydotnet/git-subrepo;
+    description = "Git submodule alternative";
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.ryantrinkle ];
+  };
+}
diff --git a/pkgs/applications/version-management/git-and-tools/git-subrepo/zsh-completion.patch b/pkgs/applications/version-management/git-and-tools/git-subrepo/zsh-completion.patch
new file mode 100644
index 00000000000..dcba5ba6eea
--- /dev/null
+++ b/pkgs/applications/version-management/git-and-tools/git-subrepo/zsh-completion.patch
@@ -0,0 +1,32 @@
+diff --git a/pkg/bin/generate-completion.pl b/pkg/bin/generate-completion.pl
+index 85ae3b8..d3e423c 100644
+--- a/pkg/bin/generate-completion.pl
++++ b/pkg/bin/generate-completion.pl
+@@ -82,11 +82,6 @@ sub generate_zsh {
+ 
+ # DO NOT EDIT. This file generated by pkg/bin/generate-completion.pl.
+ 
+-if [[ -z $GIT_SUBREPO_ROOT ]]; then
+-	echo 'GIT_SUBREPO_ROOT is null; has `/path/to/git-subrepo/.rc` been sourced?'
+-	return 3
+-fi
+-
+ _git-subrepo() {
+     typeset -A opt_args
+     local curcontext="$curcontext" state line context
+diff --git a/share/zsh-completion/_git-subrepo b/share/zsh-completion/_git-subrepo
+index fc82be2..a8069d9 100644
+--- a/share/zsh-completion/_git-subrepo
++++ b/share/zsh-completion/_git-subrepo
+@@ -3,11 +3,6 @@
+ 
+ # DO NOT EDIT. This file generated by pkg/bin/generate-completion.pl.
+ 
+-if [[ -z $GIT_SUBREPO_ROOT ]]; then
+-	echo 'GIT_SUBREPO_ROOT is null; has `/path/to/git-subrepo/.rc` been sourced?'
+-	return 3
+-fi
+-
+ _git-subrepo() {
+     typeset -A opt_args
+     local curcontext="$curcontext" state line context
diff --git a/pkgs/applications/window-managers/compton/default.nix b/pkgs/applications/window-managers/compton/default.nix
index 843c331f91c..0941329bdbe 100644
--- a/pkgs/applications/window-managers/compton/default.nix
+++ b/pkgs/applications/window-managers/compton/default.nix
@@ -5,15 +5,13 @@
 , libXinerama, libXext, xwininfo, libxdg_basedir }:
 stdenv.mkDerivation rec {
   pname = "compton";
-  version = "7";
-
-  COMPTON_VERSION = "v${version}";
+  version = "7.2";
 
   src = fetchFromGitHub {
     owner  = "yshui";
     repo   = "compton";
-    rev    = COMPTON_VERSION;
-    sha256 = "0f23dv2p1snlpzc91v38q6896ncz4zqzmh2d97yf66j78g21awas";
+    rev    = "v${version}";
+    sha256 = "1vwa5f0nifc1913diqd6cp5k1dlfyc2ijxbcdj1s37ywpx6c63c3";
     fetchSubmodules = true;
   };
 
@@ -42,11 +40,6 @@ stdenv.mkDerivation rec {
     "-Dbuild_docs=true"
   ];
 
-  preBuild = ''
-    git() { echo "$COMPTON_VERSION"; }
-    export -f git
-  '';
-
   installFlags = [ "PREFIX=$(out)" ];
 
   postInstall = ''
diff --git a/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix b/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix
index e947f8625c6..6f137cc65d5 100644
--- a/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-control-center/default.nix
@@ -1,15 +1,67 @@
-{ fetchurl, stdenv, substituteAll, meson, ninja, pkgconfig, gnome3, ibus, gettext, upower, wrapGAppsHook
-, libcanberra-gtk3, accountsservice, libpwquality, libpulseaudio
-, gdk-pixbuf, librsvg, libgudev, libsecret, gnome-color-manager
-, libxml2, polkit, libxslt, libgtop, libsoup, colord, colord-gtk
-, libkrb5, networkmanagerapplet, networkmanager, glibc
-, libwacom, samba, shared-mime-info, tzdata, libgnomekbd
-, docbook_xsl, modemmanager, clutter, clutter-gtk, cheese, gnome-session
-, fontconfig, sound-theme-freedesktop, grilo, python3
-, gtk3, glib, glib-networking, gsettings-desktop-schemas
-, gnome-desktop, gnome-settings-daemon, gnome-online-accounts
-, vino, gnome-bluetooth, tracker, adwaita-icon-theme
-, udisks2, gsound, libhandy, cups, mutter }:
+{ fetchurl
+, stdenv
+, substituteAll
+, accountsservice
+, adwaita-icon-theme
+, cheese
+, clutter
+, clutter-gtk
+, colord
+, colord-gtk
+, cups
+, docbook_xsl
+, fontconfig
+, gdk-pixbuf
+, gettext
+, glib
+, glib-networking
+, glibc
+, gnome-bluetooth
+, gnome-color-manager
+, gnome-desktop
+, gnome-online-accounts
+, gnome-session
+, gnome-settings-daemon
+, gnome3
+, grilo
+, grilo-plugins
+, gsettings-desktop-schemas
+, gsound
+, gtk3
+, ibus
+, libcanberra-gtk3
+, libgnomekbd
+, libgtop
+, libgudev
+, libhandy
+, libkrb5
+, libpulseaudio
+, libpwquality
+, librsvg
+, libsecret
+, libsoup
+, libwacom
+, libxml2
+, libxslt
+, meson
+, modemmanager
+, mutter
+, networkmanager
+, networkmanagerapplet
+, ninja
+, pkgconfig
+, polkit
+, python3
+, samba
+, shared-mime-info
+, sound-theme-freedesktop
+, tracker
+, tzdata
+, udisks2
+, upower
+, vino
+, wrapGAppsHook
+}:
 
 stdenv.mkDerivation rec {
   pname = "gnome-control-center";
@@ -21,20 +73,61 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
-    meson ninja pkgconfig gettext wrapGAppsHook libxslt docbook_xsl
-    shared-mime-info python3
+    docbook_xsl
+    gettext
+    libxslt
+    meson
+    ninja
+    pkgconfig
+    python3
+    shared-mime-info
+    wrapGAppsHook
   ];
 
   buildInputs = [
-    ibus gtk3 glib glib-networking upower gsettings-desktop-schemas
-    libxml2 gnome-desktop gnome-settings-daemon polkit libgtop
-    gnome-online-accounts libsoup colord libpulseaudio fontconfig colord-gtk
-    accountsservice libkrb5 networkmanagerapplet libwacom samba
-    grilo libpwquality vino libcanberra-gtk3 libgudev libsecret
-    gdk-pixbuf adwaita-icon-theme librsvg clutter clutter-gtk cheese
-    networkmanager modemmanager gnome-bluetooth tracker
-    udisks2 gsound libhandy
+    accountsservice
+    adwaita-icon-theme
+    cheese
+    clutter
+    clutter-gtk
+    colord
+    colord-gtk
+    fontconfig
+    gdk-pixbuf
+    glib
+    glib-networking
+    gnome-bluetooth
+    gnome-desktop
+    gnome-online-accounts
+    gnome-settings-daemon
+    grilo
+    grilo-plugins # for setting wallpaper from Flickr
+    gsettings-desktop-schemas
+    gsound
+    gtk3
+    ibus
+    libcanberra-gtk3
+    libgtop
+    libgudev
+    libhandy
+    libkrb5
+    libpulseaudio
+    libpwquality
+    librsvg
+    libsecret
+    libsoup
+    libwacom
+    libxml2
+    modemmanager
     mutter # schemas for the keybindings
+    networkmanager
+    networkmanagerapplet
+    polkit
+    samba
+    tracker
+    udisks2
+    upower
+    vino
   ];
 
   patches = [
diff --git a/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix b/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix
index dbcb992c425..b273bbece96 100644
--- a/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix
+++ b/pkgs/desktops/pantheon/desktop/elementary-gsettings-schemas/default.nix
@@ -44,7 +44,7 @@ runCommand "elementary-gsettings-desktop-schemas" {}
 
      cat - > $out/share/gsettings-schemas/nixos-gsettings-overrides/glib-2.0/schemas/nixos-defaults.gschema.override <<- EOF
      [org.gnome.desktop.background]
-     picture-uri='${nixos-artwork.wallpapers.simple-dark-gray}/share/artwork/gnome/nix-wallpaper-simple-dark-gray.png'
+     picture-uri='file://${nixos-artwork.wallpapers.simple-dark-gray}/share/artwork/gnome/nix-wallpaper-simple-dark-gray.png'
      primary-color='#000000'
 
      ${extraGSettingsOverrides}
diff --git a/pkgs/development/compilers/go/1.11.nix b/pkgs/development/compilers/go/1.11.nix
index 56a386d8b97..a8787639053 100644
--- a/pkgs/development/compilers/go/1.11.nix
+++ b/pkgs/development/compilers/go/1.11.nix
@@ -30,11 +30,11 @@ in
 
 stdenv.mkDerivation rec {
   pname = "go";
-  version = "1.11.12";
+  version = "1.11.13";
 
   src = fetchurl {
     url = "https://dl.google.com/go/go${version}.src.tar.gz";
-    sha256 = "09k9zmq7hhgg0bf1y7rwa0kn7q1vkkr94cmg2iv9lq3najh5nykd";
+    sha256 = "0xj0pbviikdf8g0sfz5hwxf7hwz8b8g5akqnrvyclhgnsdghjcjh";
   };
 
   # perl is used for testing go vet
diff --git a/pkgs/development/compilers/go/1.12.nix b/pkgs/development/compilers/go/1.12.nix
index 098870c9808..dae4c173223 100644
--- a/pkgs/development/compilers/go/1.12.nix
+++ b/pkgs/development/compilers/go/1.12.nix
@@ -30,11 +30,11 @@ in
 
 stdenv.mkDerivation rec {
   pname = "go";
-  version = "1.12.7";
+  version = "1.12.9";
 
   src = fetchurl {
     url = "https://dl.google.com/go/go${version}.src.tar.gz";
-    sha256 = "04rvwj69gmw3bz8pw5pf10r21ar0pgpnswp15nkddf04dxyl9s4m";
+    sha256 = "1z32imbwmpkzgyh5c3vi7rbvzbq94xjk5qi2xm9sccj7kknmc3mb";
   };
 
   # perl is used for testing go vet
diff --git a/pkgs/development/compilers/graalvm/enterprise-edition.nix b/pkgs/development/compilers/graalvm/enterprise-edition.nix
index 73023a7668e..84cb38aa8d1 100644
--- a/pkgs/development/compilers/graalvm/enterprise-edition.nix
+++ b/pkgs/development/compilers/graalvm/enterprise-edition.nix
@@ -3,26 +3,26 @@
 let
   graalvm8-ee = stdenv.mkDerivation rec {
     pname = "graalvm8-ee";
-    version = "19.1.1";
+    version = "19.2.0";
     srcs = [
       (requireFile {
          name   = "graalvm-ee-linux-amd64-${version}.tar.gz";
-         sha256 = "1ayg4chiw08jbrivmsylh6275sn0ygzc0iaic28fk7hhw5dc6r2f";
+         sha256 = "1j56lyids48zyjhxk8xl4niy8hk6qzi1aj7c55yfh62id8v6cpbw";
          url    = "https://www.oracle.com/technetwork/graalvm/downloads/index.html";
       })
       (requireFile {
          name   = "native-image-installable-svm-svmee-linux-amd64-${version}.jar";
-         sha256 = "1mvc4id193gl482fnjcgh4dz29ifqwigqq68ib0i1p3ks1nnj717";
+         sha256 = "07c25l27msxccqrbz4bknz0sxsl0z2k8990cdfkbrgxvhxspfnnm";
          url    = "https://www.oracle.com/technetwork/graalvm/downloads/index.html";
       })
       (requireFile {
          name   = "python-installable-svm-svmee-linux-amd64-${version}.jar";
-         sha256 = "0q7sggqk5myad053dsfw2i1n8v4wspahg1ac7zr3y3srqvdb0xfp";
+         sha256 = "1c7kpz56w9p418li97ymixdwywscr85vhn7jkzxq71bj7ia7pxwz";
          url    = "https://www.oracle.com/technetwork/graalvm/downloads/index.html";
       })
       (requireFile {
          name   = "ruby-installable-svm-svmee-linux-amd64-${version}.jar";
-         sha256 = "1xax1bg155d74jhv7h0qb7vbc95jy4wm4bvbpvr76ivzn7qaml6j";
+         sha256 = "13jfm5qpxqxz7f5n9yyvqrv1vwigifrjwk3hssp23maski2ssys1";
          url    = "https://www.oracle.com/technetwork/graalvm/downloads/index.html";
       })
     ];
diff --git a/pkgs/development/compilers/solc/default.nix b/pkgs/development/compilers/solc/default.nix
index 6ab55fbd5c0..b0fdc886378 100644
--- a/pkgs/development/compilers/solc/default.nix
+++ b/pkgs/development/compilers/solc/default.nix
@@ -1,9 +1,10 @@
 { stdenv, fetchzip, boost, cmake, ncurses, python2
-, z3Support ? true, z3 ? null
+, z3Support ? true, z3 ? null, cvc4Support ? true, cvc4 ? null
+, cln ? null, gmp ? null
 }:
 
-assert z3Support -> z3 != null;
-assert z3Support -> stdenv.lib.versionAtLeast z3.version "4.6.0";
+assert z3Support -> z3 != null && stdenv.lib.versionAtLeast z3.version "4.6.0";
+assert cvc4Support -> cvc4 != null && cln != null && gmp != null;
 
 let
   jsoncppURL = https://github.com/open-source-parsers/jsoncpp/archive/1.8.4.tar.gz;
@@ -16,12 +17,12 @@ in
 stdenv.mkDerivation rec {
 
   pname = "solc";
-  version = "0.5.10";
+  version = "0.5.11";
 
   # upstream suggests avoid using archive generated by github
   src = fetchzip {
     url = "https://github.com/ethereum/solidity/releases/download/v${version}/solidity_${version}.tar.gz";
-    sha256 = "1ns562h8blvv32lz462rf5835fs2hgn698mvi6ss5y7ar6k5y5xw";
+    sha256 = "0679s5pqbfy7fgpb4f3ppgj8iafxb64g046v8vhp29mf3dsdcnyl";
   };
 
   patches = stdenv.lib.optionals buildSharedLibs [ ./patches/shared-libs-install.patch ];
@@ -37,10 +38,14 @@ stdenv.mkDerivation rec {
     "-DBUILD_SHARED_LIBS=ON"
   ] ++ stdenv.lib.optionals (!z3Support) [
     "-DUSE_Z3=OFF"
+  ] ++ stdenv.lib.optionals (!cvc4Support) [
+    "-DUSE_CVC4=OFF"
   ];
 
   nativeBuildInputs = [ cmake ];
-  buildInputs = [ boost ] ++ stdenv.lib.optionals z3Support [ z3 ];
+  buildInputs = [ boost ]
+    ++ stdenv.lib.optionals z3Support [ z3 ]
+    ++ stdenv.lib.optionals cvc4Support [ cvc4 cln gmp ];
   checkInputs = [ ncurses python2 ];
 
   # Test fails on darwin for unclear reason
diff --git a/pkgs/development/interpreters/evcxr/cargo-lock.patch b/pkgs/development/interpreters/evcxr/cargo-lock.patch
deleted file mode 100644
index 6feaf12844c..00000000000
--- a/pkgs/development/interpreters/evcxr/cargo-lock.patch
+++ /dev/null
@@ -1,684 +0,0 @@
-diff --git a/Cargo.lock b/Cargo.lock
-new file mode 100644
-index 0000000..edf585d
---- /dev/null
-+++ b/Cargo.lock
-@@ -0,0 +1,661 @@
-+# This file is automatically @generated by Cargo.
-+# It is not intended for manual editing.
-+[[package]]
-+name = "aho-corasick"
-+version = "0.6.10"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "approx"
-+version = "0.1.1"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "argon2rs"
-+version = "0.2.5"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "arrayvec"
-+version = "0.4.10"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "autocfg"
-+version = "0.1.2"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "backtrace"
-+version = "0.3.15"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "backtrace-sys"
-+version = "0.1.28"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "cc 1.0.36 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "base64"
-+version = "0.10.1"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "bitflags"
-+version = "1.0.5"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "blake2-rfc"
-+version = "0.2.18"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "byteorder"
-+version = "1.3.1"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "cc"
-+version = "1.0.36"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "cfg-if"
-+version = "0.1.7"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "cgmath"
-+version = "0.16.1"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "approx 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "cloudabi"
-+version = "0.0.3"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "bitflags 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "colored"
-+version = "1.8.0"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "winconsole 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "constant_time_eq"
-+version = "0.1.3"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "dirs"
-+version = "1.0.5"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "redox_users 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "evcxr"
-+version = "0.3.3"
-+dependencies = [
-+ "backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "json 0.11.13 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "libloading 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "sig 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "evcxr_repl"
-+version = "0.3.3"
-+dependencies = [
-+ "colored 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "evcxr 0.3.3",
-+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "rustyline 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "evcxr_runtime"
-+version = "1.1.0"
-+dependencies = [
-+ "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "failure"
-+version = "0.1.5"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "failure_derive"
-+version = "0.1.5"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "fuchsia-cprng"
-+version = "0.1.1"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "json"
-+version = "0.11.13"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "lazy_static"
-+version = "1.3.0"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "libc"
-+version = "0.2.54"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "libloading"
-+version = "0.5.0"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "cc 1.0.36 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "log"
-+version = "0.4.6"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "memchr"
-+version = "2.2.0"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "nix"
-+version = "0.11.0"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "bitflags 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "cc 1.0.36 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
-+ "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "nodrop"
-+version = "0.1.13"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "num-traits"
-+version = "0.1.43"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "num-traits"
-+version = "0.2.6"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+
-+[[package]]
-+name = "proc-macro2"
-+version = "0.4.27"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "quote"
-+version = "0.6.12"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
-+]
-+
-+[[package]]
-+name = "rand"
-+version = "0.4.6"
-+source = "registry+https://github.com/rust-lang/crates.io-index"
-+dependencies = [
-+ "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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-+"checksum rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "abf9b09b01790cfe0364f52bf32995ea3c39f4d2dd011eac241d2914146d0b44"
-+"checksum rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
-+"checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
-+"checksum redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)" = "12229c14a0f65c4f1cb046a3b52047cdd9da1f4b30f8a39c5063c8bae515e252"
-+"checksum redox_users 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3fe5204c3a17e97dde73f285d49be585df59ed84b50a872baf416e73b62c3828"
-+"checksum regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "53ee8cfdddb2e0291adfb9f13d31d3bbe0a03c9a402c01b1e24188d86c35b24f"
-+"checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96"
-+"checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
-+"checksum rgb 0.8.13 (registry+https://github.com/rust-lang/crates.io-index)" = "4f089652ca87f5a82a62935ec6172a534066c7b97be003cc8f702ee9a7a59c92"
-+"checksum rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "ccc78bfd5acd7bf3e89cffcf899e5cb1a52d6fafa8dec2739ad70c9577a57288"
-+"checksum rustyline 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "eb02ba7748691403057542ee60a1e7688fdfb46bd3bee752b8977537ee003ae2"
-+"checksum scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
-+"checksum sig 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6567e29578f9bfade6a5d94a32b9a4256348358d2a3f448cab0021f9a02614a2"
-+"checksum syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)" = "525bd55255f03c816e5d7f615587bd13030c7103354fadb104993dcee6a788ec"
-+"checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
-+"checksum tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b86c784c88d98c801132806dadd3819ed29d8600836c4088e855cdf3e178ed8a"
-+"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
-+"checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"
-+"checksum unicode-segmentation 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "aa6024fc12ddfd1c6dbc14a80fa2324d4568849869b779f6bd37e5e4c03344d1"
-+"checksum unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "882386231c45df4700b275c7ff55b6f3698780a650026380e72dabe76fa46526"
-+"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-+"checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
-+"checksum utf8parse 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8772a4ccbb4e89959023bc5b7cb8623a795caa7092d99f3aa9501b9484d4557d"
-+"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-+"checksum winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f10e386af2b13e47c89e7236a7a14a086791a2b88ebad6df9bf42040195cf770"
-+"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-+"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-+"checksum winconsole 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ef84b96d10db72dd980056666d7f1e7663ce93d82fa33b63e71c966f4cf5032"
-diff --git a/Cargo.toml b/Cargo.toml
-index d09a342..5377ed0 100644
---- a/Cargo.toml
-+++ b/Cargo.toml
-@@ -2,10 +2,9 @@
- members = [
-   "evcxr",
-   "evcxr_repl",
--  "evcxr_jupyter",
-   "evcxr_runtime",
- ]
- 
- exclude = [
-   "runtimes"
--]
-\ No newline at end of file
-+]
diff --git a/pkgs/development/interpreters/evcxr/default.nix b/pkgs/development/interpreters/evcxr/default.nix
index 2c30c0ca385..84ebc49a221 100644
--- a/pkgs/development/interpreters/evcxr/default.nix
+++ b/pkgs/development/interpreters/evcxr/default.nix
@@ -1,21 +1,20 @@
-{ cargo, fetchFromGitHub, makeWrapper, pkgconfig, rustPlatform, stdenv, gcc, Security }:
+{ cargo, fetchFromGitHub, makeWrapper, pkgconfig, rustPlatform, stdenv, gcc, Security, zeromq }:
 
 rustPlatform.buildRustPackage rec {
-  name = "evcxr-${version}";
-  version = "0.3.3";
+  pname = "evcxr";
+  version = "0.4.3";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "evcxr";
-    rev = "ae07ccf08723b7aec0de57d540822b89088ca036";
-    sha256 = "1apc93z9vvf6qks5x2pad45rnrj9kjl812rj78w5zmmizccp2fhf";
+    rev = "v${version}";
+    sha256 = "08zsdl6pkg6dx7k0ns8cd070v7ydsxkscd2ms8wh9r68c08vwzcp";
   };
 
-  cargoSha256 = "153pxqj4jhlbacr7607q9yfw6h96ns5igbvssis8j3gn0xp6ssg6";
-  cargoPatches = [ ./cargo-lock.patch ];
+  cargoSha256 = "1hqlagwl94xcybfqq5h2mrz9296mjns2l598d6jclls7ac5wsdfc";
 
   nativeBuildInputs = [ pkgconfig makeWrapper ];
-  buildInputs = [ cargo ] ++ stdenv.lib.optional stdenv.isDarwin Security;
+  buildInputs = [ zeromq ] ++ stdenv.lib.optional stdenv.isDarwin Security;
   postInstall = ''
     wrapProgram $out/bin/evcxr --prefix PATH : ${stdenv.lib.makeBinPath [ cargo gcc ]}
     rm $out/bin/testing_runtime
diff --git a/pkgs/development/libraries/cm256cc/default.nix b/pkgs/development/libraries/cm256cc/default.nix
new file mode 100644
index 00000000000..aaf40998102
--- /dev/null
+++ b/pkgs/development/libraries/cm256cc/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, fetchFromGitHub, cmake, boost } :
+
+stdenv.mkDerivation rec {
+  pname = "cm256cc";
+  version = "1.0.5";
+
+  src = fetchFromGitHub {
+    owner = "f4exb";
+    repo = "cm256cc";
+    rev = "v${version}";
+    sha256 = "0d16y3lhdwr644am4sxqpshpbc3qik6dgr1w2c39vy75w9ff61a0";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ boost ];
+
+  meta = with stdenv.lib; {
+    description = "Fast GF(256) Cauchy MDS Block Erasure Codec in C++";
+    homepage = "https://github.com/f4exb/cm256cc";
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ alkeryn ];
+  };
+}
diff --git a/pkgs/development/libraries/graphene-hardened-malloc/default.nix b/pkgs/development/libraries/graphene-hardened-malloc/default.nix
index dc3defac638..66c5d8eb061 100644
--- a/pkgs/development/libraries/graphene-hardened-malloc/default.nix
+++ b/pkgs/development/libraries/graphene-hardened-malloc/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "graphene-hardened-malloc";
-  version = "1";
+  version = "2";
 
   src = fetchurl {
     url = "https://github.com/GrapheneOS/hardened_malloc/archive/${version}.tar.gz";
-    sha256 = "1z3kb9fr6w9fcdc42bh8k5b4r10sn5hrwwk4m691qjdgk5hlj3aa";
+    sha256 = "0zsl4vl65ic6lw5rzcjzvcxg8makg683abnwvy60zfap8hvijvjb";
   };
 
   installPhase = ''
diff --git a/pkgs/development/libraries/hunspell/dictionaries.nix b/pkgs/development/libraries/hunspell/dictionaries.nix
index 1c86830f258..b9a283d80d2 100644
--- a/pkgs/development/libraries/hunspell/dictionaries.nix
+++ b/pkgs/development/libraries/hunspell/dictionaries.nix
@@ -312,6 +312,17 @@ in rec {
     };
   };
 
+  en-au = mkDictFromWordlist {
+    shortName = "en-au";
+    shortDescription = "English (Australia)";
+    dictFileName = "en_AU";
+    src = fetchurl {
+      url = mirror://sourceforge/wordlist/speller/2018.04.16/hunspell-en_AU-2018.04.16.zip;
+      sha256 = "1kp06npl1kd05mm9r52cg2iwc13x02zwqgpibdw15b6x43agg6f5";
+    };
+  };
+  en_AU = en-au;
+
   en_GB-ise = en-gb-ise;
   en-gb-ise = mkDictFromWordlist {
     shortName = "en-gb-ise";
diff --git a/pkgs/development/libraries/libcacard/default.nix b/pkgs/development/libraries/libcacard/default.nix
index 48402b9ad45..2e134c5bb63 100644
--- a/pkgs/development/libraries/libcacard/default.nix
+++ b/pkgs/development/libraries/libcacard/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "libcacard";
-  version = "2.6.1";
+  version = "2.7.0";
 
   src = fetchurl {
     url = "https://www.spice-space.org/download/libcacard/${pname}-${version}.tar.xz";
-    sha256 = "1w6y0kiakhg7dgyf8yqpm4jj6jiv17zhy9lp3d7z32q1pniccxk2";
+    sha256 = "0vyvkk4b6xjwq1ccggql13c1x7g4y90clpkqw28257azgn2a1c8n";
   };
 
   nativeBuildInputs = [ pkgconfig ];
diff --git a/pkgs/development/libraries/libdazzle/default.nix b/pkgs/development/libraries/libdazzle/default.nix
index 28d9152dcee..f7e0a987b06 100644
--- a/pkgs/development/libraries/libdazzle/default.nix
+++ b/pkgs/development/libraries/libdazzle/default.nix
@@ -2,7 +2,7 @@
 , gtk-doc, docbook_xsl, docbook_xml_dtd_43, glibcLocales, dbus, xvfb_run, glib, gtk3, gnome3 }:
 
 let
-  version = "3.32.2";
+  version = "3.32.3";
   pname = "libdazzle";
 in
 stdenv.mkDerivation {
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "mirror://gnome/sources/libdazzle/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "0hgi7gnkna9n42nh7p81crrw0jjj22yr8acych60wxh6hzxqsgs1";
+    sha256 = "1s37hv12ikfzhvh86qzgmfcjm3wvp12l2vsr0whl5xmm2harp3bc";
   };
 
   nativeBuildInputs = [ ninja meson pkgconfig vala gobject-introspection libxml2 gtk-doc docbook_xsl docbook_xml_dtd_43 glibcLocales dbus xvfb_run ];
diff --git a/pkgs/development/libraries/libgig/default.nix b/pkgs/development/libraries/libgig/default.nix
index 11affa5cbef..27939238278 100644
--- a/pkgs/development/libraries/libgig/default.nix
+++ b/pkgs/development/libraries/libgig/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "libgig";
-  version = "4.1.0";
+  version = "4.2.0";
 
   src = fetchurl {
     url = "https://download.linuxsampler.org/packages/${pname}-${version}.tar.bz2";
-    sha256 = "02xx6bqxzgkvrawwnzrnxx1ypk244q4kpwfd58266f9ji8kq18h6";
+    sha256 = "1zs5yy124bymfyapsnljr6rv2lnn5inwchm0xnwiw44b2d39l8hn";
   };
 
   nativeBuildInputs = [ autoconf automake libtool pkgconfig ];
diff --git a/pkgs/development/libraries/libspf2/default.nix b/pkgs/development/libraries/libspf2/default.nix
new file mode 100644
index 00000000000..d4b11270428
--- /dev/null
+++ b/pkgs/development/libraries/libspf2/default.nix
@@ -0,0 +1,43 @@
+{ stdenv, fetchurl, autoreconfHook }:
+
+with stdenv.lib;
+
+stdenv.mkDerivation rec {
+  pname = "libspf2";
+  version = "1.2.10";
+
+  src = fetchurl {
+    url = "https://www.libspf2.org/spf/libspf2-${version}.tar.gz";
+    sha256 = "1j91p0qiipzf89qxq4m1wqhdf01hpn1h5xj4djbs51z23bl3s7nr";
+  };
+
+  patches = [
+    (fetchurl {
+      name = "0001-gcc-variadic-macros.patch";
+      url = "https://github.com/shevek/libspf2/commit/5852828582f556e73751076ad092f72acf7fc8b6.patch";
+      sha256 = "1v6ashqzpr0xidxq0vpkjd8wd66cj8df01kyzj678ljzcrax35hk";
+    })
+  ];
+
+  postPatch = ''
+    # disable static bins compilation
+    sed -i \
+      -e '/bin_PROGRAMS/s/spfquery_static//' src/spfquery/Makefile.am \
+      -e '/bin_PROGRAMS/s/spftest_static//' src/spftest/Makefile.am \
+      -e '/bin_PROGRAMS/s/spfd_static//' src/spfd/Makefile.am \
+      -e '/bin_PROGRAMS/s/spf_example_static//' src/spf_example/Makefile.am
+  '';
+
+  # autoreconf necessary because we modified automake files
+  nativeBuildInputs = [ autoreconfHook ];
+
+  doCheck = true;
+
+  meta = {
+    description = "Implementation of the Sender Policy Framework for SMTP authorization";
+    homepage = https://www.libspf2.org;
+    license = with licenses; [ lgpl21Plus bsd2 ];
+    maintainers = with maintainers; [ pacien ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/development/libraries/libvirt/default.nix b/pkgs/development/libraries/libvirt/default.nix
index cf3730cbe17..0556e311736 100644
--- a/pkgs/development/libraries/libvirt/default.nix
+++ b/pkgs/development/libraries/libvirt/default.nix
@@ -129,6 +129,7 @@ in stdenv.mkDerivation rec {
     binPath = [ iptables iproute pmutils numad numactl bridge-utils dmidecode dnsmasq ebtables ] ++ optionals enableIscsi [ openiscsi ];
   in ''
     substituteInPlace $out/libexec/libvirt-guests.sh \
+      --replace 'ON_BOOT=start'       'ON_BOOT=''${ON_BOOT:-start}' \
       --replace 'ON_SHUTDOWN=suspend' 'ON_SHUTDOWN=''${ON_SHUTDOWN:-suspend}' \
       --replace "$out/bin"            '${gettext}/bin' \
       --replace 'lock/subsys'         'lock' \
diff --git a/pkgs/development/libraries/luaffi/darwin.patch b/pkgs/development/libraries/luaffi/darwin.patch
deleted file mode 100644
index 50db81b776d..00000000000
--- a/pkgs/development/libraries/luaffi/darwin.patch
+++ /dev/null
@@ -1,17 +0,0 @@
-diff --git a/Makefile b/Makefile
-index b2b5f2c..b690a5d 100644
---- a/Makefile
-+++ b/Makefile
-@@ -18,10 +18,10 @@ test:
- 	if [ `uname` = "Darwin" ]; then $(MAKE) test_macosx; else $(MAKE) test_posix; fi
- 
- macosx:
--	$(MAKE) posix "SOCC=MACOSX_DEPLOYMENT_TARGET=10.3 $(CC) -dynamiclib -single_module -undefined dynamic_lookup $(SOCFLAGS)"
-+	$(MAKE) posix "SOCC= $(CC) -dynamiclib -single_module -undefined dynamic_lookup -Wl,-install_name,$(PREFIX)/lib/$(MODSO) $(SOCFLAGS)"
- 
- test_macosx:
--	$(MAKE) test_posix "SOCC=MACOSX_DEPLOYMENT_TARGET=10.3 $(CC) -dynamiclib -single_module -undefined dynamic_lookup $(SOCFLAGS)"
-+	$(MAKE) test_posix "SOCC= $(CC) -dynamiclib -single_module -undefined dynamic_lookup -Wl,-install_name,$(PREFIX)/lib/$(MODSO) $(SOCFLAGS)"
- 
- posix: $(MODSO) test_cdecl.so
- 
diff --git a/pkgs/development/libraries/luaffi/default.nix b/pkgs/development/libraries/luaffi/default.nix
deleted file mode 100644
index 065562ac82e..00000000000
--- a/pkgs/development/libraries/luaffi/default.nix
+++ /dev/null
@@ -1,31 +0,0 @@
-{ stdenv, fetchFromGitHub, lua, pkgconfig }:
-
-stdenv.mkDerivation {
-  name = "luaffi-2013-11-08";
-  src = fetchFromGitHub {
-    owner = "jmckaskill";
-    repo = "luaffi";
-    rev = "abc638c9341025580099dcf77795c4b320ba0e63";
-    sha256 = "1hv1y9i66p473hfy36nqj220sfrxdmbd75c1gpjvpk8073vx55ac";
-  };
-
-  nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ lua ];
-
-  patches = [ ./darwin.patch ./makefile-errors.patch ];
-
-  makeFlags = [ "PREFIX=$(out)" ];
-
-  installPhase = ''
-    mkdir -p $out/lib
-    cp ffi.so $out/lib/ffi.so
-  '';
-
-  meta = with stdenv.lib; {
-    description = "Standalone FFI library for calling C functions from lua. Compatible with the luajit FFI interface.";
-    homepage = https://github.com/jmckaskill/luaffi;
-    maintainers = with maintainers; [ ma27 ];
-    license = licenses.mit;
-    platforms = platforms.unix;
-  };
-}
diff --git a/pkgs/development/libraries/luaffi/makefile-errors.patch b/pkgs/development/libraries/luaffi/makefile-errors.patch
deleted file mode 100644
index 0ee6e639006..00000000000
--- a/pkgs/development/libraries/luaffi/makefile-errors.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/Makefile b/Makefile
-index b2b5f2c..49d4c99 100644
---- a/Makefile
-+++ b/Makefile
-@@ -6,7 +6,7 @@ LUA=lua
- LUA_CFLAGS=`$(PKG_CONFIG) --cflags lua5.2 2>/dev/null || $(PKG_CONFIG) --cflags lua`
- SOCFLAGS=-fPIC
- SOCC=$(CC) -shared $(SOCFLAGS)
--CFLAGS=-fPIC -g -Wall -Werror $(LUA_CFLAGS) -fvisibility=hidden -Wno-unused-function --std=gnu99
-+CFLAGS=-fPIC -g -Wall $(LUA_CFLAGS) -fvisibility=hidden -Wno-unused-function --std=gnu99
- 
- MODNAME=ffi
- MODSO=$(MODNAME).so
diff --git a/pkgs/development/libraries/protobuf/3.9.nix b/pkgs/development/libraries/protobuf/3.9.nix
index 6652ba7648c..a2f3e0e0164 100644
--- a/pkgs/development/libraries/protobuf/3.9.nix
+++ b/pkgs/development/libraries/protobuf/3.9.nix
@@ -1,6 +1,6 @@
 { callPackage, ... }:
 
 callPackage ./generic-v3.nix {
-  version = "3.9.0";
-  sha256 = "1xq2njqrbmizwg91ggi1lqr0n26cm2jdyk668ljc24ihrpk0z9bw";
+  version = "3.9.1";
+  sha256 = "0vv85xb65dx6fa76fsnyps13kaamvwfzd8hr6ii1payr73x4zy2h";
 }
diff --git a/pkgs/development/libraries/serialdv/default.nix b/pkgs/development/libraries/serialdv/default.nix
new file mode 100644
index 00000000000..11f9d301347
--- /dev/null
+++ b/pkgs/development/libraries/serialdv/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "serialdv";
+  version ="1.1.1";
+
+  src = fetchFromGitHub {
+    owner = "f4exb";
+    repo = "serialdv";
+    rev = "v${version}";
+    sha256 = "0swalyp8cbs7if6gxbcl7wf83ml8ch3k7ww4hws89rzpjvf070fr";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = with stdenv.lib; {
+    description = "C++ Minimal interface to encode and decode audio with AMBE3000 based devices in packet mode over a serial link.";
+    homepage = "https://github.com/f4exb/serialdv";
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ alkeryn ];
+  };
+}
+
diff --git a/pkgs/development/libraries/wiredtiger/default.nix b/pkgs/development/libraries/wiredtiger/default.nix
index e54e0d4b306..2ebad693de5 100644
--- a/pkgs/development/libraries/wiredtiger/default.nix
+++ b/pkgs/development/libraries/wiredtiger/default.nix
@@ -26,13 +26,13 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "wiredtiger";
-  version = "2.6.1";
+  version = "3.2.0";
 
   src = fetchFromGitHub {
     repo = "wiredtiger";
     owner = "wiredtiger";
     rev = version;
-    sha256 = "1nj319w3hvkq3za2dz9m0p1w683gycdb392v1jb910bhzpsq30pd";
+    sha256 = "1s27l51p2p3kbdjmccvlg43i7zx84hhchs3779w9giab4nvd0y19";
   };
 
   nativeBuildInputs = [ automake autoconf libtool ];
@@ -58,17 +58,10 @@ stdenv.mkDerivation rec {
     ./autogen.sh
   '';
 
-  prePatch = stdenv.lib.optionalString stdenv.isDarwin ''
-    substituteInPlace api/leveldb/leveldb_wt.h --replace \
-      '#include "wiredtiger.h"' \
-      ''$'#include "wiredtiger.h"\n#include "pthread.h"'
-  '';
-
   meta = {
     homepage = http://wiredtiger.com/;
     description = "";
     license = licenses.gpl2;
     platforms = intersectLists platforms.unix platforms.x86_64;
-    broken = true; # Broken by f689a6d1c6796c4a4f116ffec6c4624379e04bc9.
   };
 }
diff --git a/pkgs/development/ocaml-modules/logs/default.nix b/pkgs/development/ocaml-modules/logs/default.nix
index 157beaac4bc..22c4216a88f 100644
--- a/pkgs/development/ocaml-modules/logs/default.nix
+++ b/pkgs/development/ocaml-modules/logs/default.nix
@@ -5,7 +5,9 @@ let
   webpage = "https://erratique.ch/software/${pname}";
 in
 
-assert stdenv.lib.versionAtLeast ocaml.version "4.01.0";
+if !stdenv.lib.versionAtLeast ocaml.version "4.03"
+then throw "logs is not available for OCaml ${ocaml.version}"
+else
 
 stdenv.mkDerivation rec {
   name = "ocaml-${pname}-${version}";
diff --git a/pkgs/development/ocaml-modules/lwt_log/default.nix b/pkgs/development/ocaml-modules/lwt_log/default.nix
index 7eea297e3ee..8286ee16619 100644
--- a/pkgs/development/ocaml-modules/lwt_log/default.nix
+++ b/pkgs/development/ocaml-modules/lwt_log/default.nix
@@ -2,7 +2,7 @@
 
 buildDunePackage rec {
   pname = "lwt_log";
-  version = "1.1.0";
+  version = "1.1.1";
 
   minimumOCamlVersion = "4.02";
 
@@ -10,7 +10,7 @@ buildDunePackage rec {
     owner = "aantron";
     repo = pname;
     rev = version;
-    sha256 = "1c58gkqfvyf2j11jwj2nh4iq999wj9xpnmr80hz9d0nk9fv333pi";
+    sha256 = "1n12i1rmn9cjn6p8yr6qn5dwbrwvym7ckr7bla04a1xnq8qlcyj7";
   };
 
   propagatedBuildInputs = [ lwt ];
diff --git a/pkgs/development/ocaml-modules/ocurl/default.nix b/pkgs/development/ocaml-modules/ocurl/default.nix
index 4b6bea31b40..0b90cd4b6aa 100644
--- a/pkgs/development/ocaml-modules/ocurl/default.nix
+++ b/pkgs/development/ocaml-modules/ocurl/default.nix
@@ -1,10 +1,10 @@
 { stdenv, pkgconfig, ocaml, findlib, fetchurl, curl, ncurses }:
 
 stdenv.mkDerivation rec {
-  name = "ocurl-0.8.1";
+  name = "ocurl-0.8.2";
   src = fetchurl {
     url = "http://ygrek.org.ua/p/release/ocurl/${name}.tar.gz";
-    sha256 = "08ldzbx1k3mbjc01fmzsn86ll4paf331bcjss6iig6y6hgc9q3ry";
+    sha256 = "1ax3xdlzgb1zg7d0wr9nwgmh6a45a764m0wk8p6mx07ad94hz0q9";
   };
 
   buildInputs = [ pkgconfig ocaml findlib ncurses ];
diff --git a/pkgs/development/ocaml-modules/otr/default.nix b/pkgs/development/ocaml-modules/otr/default.nix
index ac853c94094..caa2d01a441 100644
--- a/pkgs/development/ocaml-modules/otr/default.nix
+++ b/pkgs/development/ocaml-modules/otr/default.nix
@@ -1,35 +1,22 @@
-{ stdenv, fetchFromGitHub, ocaml, ocamlbuild, findlib, topkg
-, ppx_tools, ppx_sexp_conv, cstruct, ppx_cstruct, sexplib, rresult, nocrypto
-, astring
+{ lib, fetchFromGitHub, buildDunePackage
+, cstruct, sexplib0, rresult, nocrypto, astring
 }:
 
-if !stdenv.lib.versionAtLeast ocaml.version "4.03"
-then throw "otr is not available for OCaml ${ocaml.version}"
-else
-
-stdenv.mkDerivation rec {
-  name = "ocaml${ocaml.version}-otr-${version}";
-  version = "0.3.4";
+buildDunePackage rec {
+  pname = "otr";
+  version = "0.3.6";
 
   src = fetchFromGitHub {
     owner  = "hannesm";
     repo   = "ocaml-otr";
     rev    = "${version}";
-    sha256 = "0ixf0jvccmcbhk5mhzqakfzimvz200wkdkq3z2d0bdzyggslbdl4";
+    sha256 = "0iz6p85a0jxng9aq9blqsky173zaqfr6wlc5j48ad55lgwzlbih5";
   };
 
-  buildInputs = [ ocaml ocamlbuild findlib topkg ppx_tools ppx_sexp_conv ppx_cstruct ];
-  propagatedBuildInputs = [ cstruct sexplib rresult nocrypto astring ];
-
-  buildPhase = "${topkg.run} build --tests true";
-
-  inherit (topkg) installPhase;
+  propagatedBuildInputs = [ cstruct sexplib0 rresult nocrypto astring ];
 
   doCheck = true;
-  checkPhase = "${topkg.run} test";
-
-  meta = with stdenv.lib; {
-    inherit (ocaml.meta) platforms;
+  meta = with lib; {
     homepage = https://github.com/hannesm/ocaml-otr;
     description = "Off-the-record messaging protocol, purely in OCaml";
     license = licenses.bsd2;
diff --git a/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix b/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix
index 363b774aaeb..03cadad7ff4 100644
--- a/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_tools_versioned/default.nix
@@ -1,23 +1,19 @@
-{ stdenv, fetchFromGitHub, ocaml, findlib, ocaml-migrate-parsetree }:
+{ lib, fetchFromGitHub, buildDunePackage, ocaml-migrate-parsetree }:
 
-stdenv.mkDerivation rec {
-  name = "ocaml${ocaml.version}-ppx_tools_versioned-${version}";
-  version = "5.1";
+buildDunePackage rec {
+  pname = "ppx_tools_versioned";
+  version = "5.2.3";
 
   src = fetchFromGitHub {
-    owner = "let-def";
-    repo = "ppx_tools_versioned";
+    owner = "ocaml-ppx";
+    repo = pname;
     rev = version;
-    sha256 = "1c7kvca67qpyr4hiy492yik5x31lmkhyhy5wpl0l0fbx7fr7l624";
+    sha256 = "1hcmpnw26zf70a71r3d2c2c0mn8q084gdn1r36ynng6fv9hq6j0y";
   };
 
-  buildInputs = [ ocaml findlib ];
-
   propagatedBuildInputs = [ ocaml-migrate-parsetree ];
 
-  createFindlibDestdir = true;
-
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = https://github.com/let-def/ppx_tools_versioned;
     description = "Tools for authors of syntactic tools (such as ppx rewriters)";
     license = licenses.gpl2;
diff --git a/pkgs/development/ocaml-modules/vg/default.nix b/pkgs/development/ocaml-modules/vg/default.nix
index cffbd77351c..9980b3f1083 100644
--- a/pkgs/development/ocaml-modules/vg/default.nix
+++ b/pkgs/development/ocaml-modules/vg/default.nix
@@ -11,11 +11,13 @@ let
   inherit (stdenv.lib) optionals versionAtLeast;
 
   pname = "vg";
-  version = "0.9.1";
+  version = "0.9.3";
   webpage = "https://erratique.ch/software/${pname}";
 in
 
-assert versionAtLeast ocaml.version "4.02.0";
+if !versionAtLeast ocaml.version "4.03"
+then throw "vg is not available for OCaml ${ocaml.version}"
+else
 
 stdenv.mkDerivation rec {
 
@@ -23,7 +25,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "${webpage}/releases/${pname}-${version}.tbz";
-    sha256 = "07h9a464v0x066mjg3ldkaq94ah47b7rvh54z4rndrg7v6bk7kyp";
+    sha256 = "0jj5hrqxdb6yyplnz0r7am4mbjzgcn876qp7sqs2x93a97fk6lwd";
   };
 
   buildInputs = [ ocaml findlib ocamlbuild topkg ];
diff --git a/pkgs/development/python-modules/gevent-websocket/default.nix b/pkgs/development/python-modules/gevent-websocket/default.nix
index 78986ec7d30..6c9df6b571b 100644
--- a/pkgs/development/python-modules/gevent-websocket/default.nix
+++ b/pkgs/development/python-modules/gevent-websocket/default.nix
@@ -3,20 +3,19 @@
 , fetchPypi
 , isPy3k
 , gevent
+, gunicorn
 }:
 
 buildPythonPackage rec {
   pname = "gevent-websocket";
   version = "0.10.1";
-  # SyntaxError in tests.
-  disabled = isPy3k;
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "1c2zv2rahp1gil3cj66hfsqgy0n35hz9fny3ywhr2319d0lz7bky";
   };
 
-  propagatedBuildInputs = [ gevent ];
+  propagatedBuildInputs = [ gevent gunicorn ];
 
   meta = with stdenv.lib; {
     homepage = https://www.gitlab.com/noppo/gevent-websocket;
diff --git a/pkgs/development/python-modules/pyowm/default.nix b/pkgs/development/python-modules/pyowm/default.nix
index 1392956ef03..1b8fffa1d29 100644
--- a/pkgs/development/python-modules/pyowm/default.nix
+++ b/pkgs/development/python-modules/pyowm/default.nix
@@ -1,9 +1,11 @@
-{ lib, buildPythonPackage, fetchPypi, requests, geojson }:
+{ lib, buildPythonPackage, fetchPypi, pythonOlder, requests, geojson }:
 
 buildPythonPackage rec {
   pname = "pyowm";
   version = "2.10.0";
 
+  disabled = pythonOlder "3.3";
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "8fd41a18536f4d6c432bc6d9ea69994efb1ea9b43688cf19523659b6f4d86cf7";
@@ -14,8 +16,7 @@ buildPythonPackage rec {
   # This may actually break the package.
   postPatch = ''
     substituteInPlace setup.py \
-      --replace "requests>=2.18.2,<2.19" "requests"  \
-      --replace "geojson>=2.3.0,<2.4" "geojson<2.5,>=2.3.0"
+      --replace "requests>=2.18.2,<2.19" "requests"
   '';
 
   # No tests in archive
diff --git a/pkgs/development/python-modules/python-language-server/default.nix b/pkgs/development/python-modules/python-language-server/default.nix
index 084432061d1..6b25ba93ef9 100644
--- a/pkgs/development/python-modules/python-language-server/default.nix
+++ b/pkgs/development/python-modules/python-language-server/default.nix
@@ -21,13 +21,13 @@ in
 
 buildPythonPackage rec {
   pname = "python-language-server";
-  version = "0.27.0";
+  version = "0.28.1";
 
   src = fetchFromGitHub {
     owner = "palantir";
     repo = "python-language-server";
     rev = version;
-    sha256 = "158wxj2w880jrab7mi4fb3xqnjhmfixqacxjp7whf7jy3zxqrq38";
+    sha256 = "0xa0zw7hlfqqa305ic4csgfmlbxhklb5xzx72mfkcz8gcc0f5qwd";
   };
 
   # The tests require all the providers, disable otherwise.
diff --git a/pkgs/development/python-modules/xapian/default.nix b/pkgs/development/python-modules/xapian/default.nix
new file mode 100644
index 00000000000..c15f2682e63
--- /dev/null
+++ b/pkgs/development/python-modules/xapian/default.nix
@@ -0,0 +1,43 @@
+{ lib, buildPythonPackage, fetchurl, python
+, sphinx
+, xapian
+}:
+
+let
+  pythonSuffix = lib.optionalString python.isPy3k "3";
+in
+buildPythonPackage rec {
+  pname = "xapian";
+  inherit (xapian) version;
+  format = "other";
+
+  src = fetchurl {
+    url = "https://oligarchy.co.uk/xapian/${version}/xapian-bindings-${version}.tar.xz";
+    sha256 = "0j9awiiw9zf97r60m848absq43k37gghpyw7acxqjazfzd71fxvm";
+  };
+
+  configureFlags = [
+    "--with-python${pythonSuffix}"
+    "PYTHON${pythonSuffix}_LIB=${placeholder "out"}/${python.sitePackages}"
+  ];
+
+  preConfigure = ''
+    export XAPIAN_CONFIG=${xapian}/bin/xapian-config
+  '';
+
+  buildInputs = [ sphinx xapian ];
+
+  doCheck = true;
+
+  checkPhase = ''
+    ${python.interpreter} python${pythonSuffix}/smoketest.py
+    ${python.interpreter} python${pythonSuffix}/pythontest.py
+  '';
+
+  meta = with lib; {
+    description = "Python Bindings for Xapian";
+    homepage = https://xapian.org/;
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ jonringer ];
+  };
+}
diff --git a/pkgs/development/tools/cloudfoundry-cli/default.nix b/pkgs/development/tools/cloudfoundry-cli/default.nix
index 891e838fb4f..be39f6e3667 100644
--- a/pkgs/development/tools/cloudfoundry-cli/default.nix
+++ b/pkgs/development/tools/cloudfoundry-cli/default.nix
@@ -2,7 +2,7 @@
 
 buildGoPackage rec {
   pname = "cloudfoundry-cli";
-  version = "6.45.0";
+  version = "6.46.1";
 
   goPackagePath = "code.cloudfoundry.org/cli";
 
@@ -12,7 +12,7 @@ buildGoPackage rec {
     owner = "cloudfoundry";
     repo = "cli";
     rev = "v${version}";
-    sha256 = "1nq78670limq8lydysadk0kb1r88w55fr8cqxqxw0zy58vy1jzr4";
+    sha256 = "0dqrkimwhw016icgyf4cyipzy6vdz5jgickm33xxd9018dh3ibwq";
   };
 
   makeTarget = let hps = stdenv.hostPlatform.system; in
diff --git a/pkgs/development/tools/misc/d-feet/default.nix b/pkgs/development/tools/misc/d-feet/default.nix
index b96f65c2ecc..cc256bc23bd 100644
--- a/pkgs/development/tools/misc/d-feet/default.nix
+++ b/pkgs/development/tools/misc/d-feet/default.nix
@@ -1,22 +1,64 @@
-{ stdenv, pkgconfig, fetchurl, itstool, intltool, libxml2, glib, gtk3
-, python3Packages, wrapGAppsHook, gnome3, libwnck3, gobject-introspection }:
+{ stdenv
+, pkgconfig
+, fetchurl
+, meson
+, ninja
+, glib
+, gtk3
+, python3
+, wrapGAppsHook
+, gnome3
+, libwnck3
+, gobject-introspection
+, gettext
+, itstool
+}:
 
-let
+python3.pkgs.buildPythonApplication rec {
   pname = "d-feet";
-  version = "0.3.14";
-in python3Packages.buildPythonApplication rec {
-  name = "${pname}-${version}";
+  version = "0.3.15";
+
   format = "other";
 
   src = fetchurl {
-    url = "mirror://gnome/sources/d-feet/${stdenv.lib.versions.majorMinor version}/${name}.tar.xz";
-    sha256 = "1m8lwiwl5jhi0x7y6x5zmd3hjplgvdjrb8a8jg74rvkygslj1p7f";
+    url = "mirror://gnome/sources/d-feet/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
+    sha256 = "1cgxgpj546jgpyns6z9nkm5k48lid8s36mvzj8ydkjqws2d19zqz";
   };
 
-  nativeBuildInputs = [ pkgconfig itstool intltool wrapGAppsHook libxml2 ];
-  buildInputs = [ glib gtk3 gnome3.adwaita-icon-theme libwnck3 gobject-introspection ];
+  nativeBuildInputs = [
+    gettext
+    gobject-introspection
+    itstool
+    meson
+    ninja
+    pkgconfig
+    python3
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    glib
+    gnome3.adwaita-icon-theme
+    gtk3
+    libwnck3
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
+    pygobject3
+  ];
+
+  mesonFlags = [
+    "-Dtests=false" # needs dbus
+  ];
 
-  propagatedBuildInputs = with python3Packages; [ pygobject3 pep8 ];
+  # Temporary fix
+  # See https://github.com/NixOS/nixpkgs/issues/56943
+  strictDeps = false;
+
+  postPatch = ''
+    chmod +x meson_post_install.py
+    patchShebangs meson_post_install.py
+  '';
 
   passthru = {
     updateScript = gnome3.updateScript {
@@ -26,17 +68,15 @@ in python3Packages.buildPythonApplication rec {
     };
   };
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "D-Feet is an easy to use D-Bus debugger";
-
     longDescription = ''
       D-Feet can be used to inspect D-Bus interfaces of running programs
       and invoke methods on those interfaces.
     '';
-
     homepage = https://wiki.gnome.org/Apps/DFeet;
-    platforms = stdenv.lib.platforms.all;
-    license = stdenv.lib.licenses.gpl2;
-    maintainers = with stdenv.lib.maintainers; [ ktosiek ];
+    platforms = platforms.linux;
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ ktosiek ];
   };
 }
diff --git a/pkgs/development/tools/ofono-phonesim/default.nix b/pkgs/development/tools/ofono-phonesim/default.nix
new file mode 100644
index 00000000000..137f56bee59
--- /dev/null
+++ b/pkgs/development/tools/ofono-phonesim/default.nix
@@ -0,0 +1,47 @@
+{ stdenv
+, mkDerivation
+, fetchFromGitHub
+, autoreconfHook
+, pkgconfig
+, qtbase
+, qtscript
+}:
+
+mkDerivation rec {
+  pname = "ofono-phonesim";
+  version = "unstable-2014-04-22";
+
+  src = fetchFromGitHub {
+    owner = "jpakkane";
+    repo = "ofono-phonesim";
+    rev = "baa41f04e6a86c5289d7185cad8a6f08a5c3ed0a";
+    sha256 = "0ywalvvf3dfbn81ml21gji1n2hywh2nmakynakjzyyskcqjn2wiz";
+  };
+
+  patches = [
+    ./qt5-compat.patch
+  ];
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkgconfig
+  ];
+
+  buildInputs = [
+    qtbase
+    qtscript
+  ];
+
+  makeFlags = [
+    "MOC=${qtbase.dev}/bin/moc"
+    "UIC=${qtbase.dev}/bin/uic"
+  ];
+
+  meta = with stdenv.lib; {
+    description = "Phone Simulator for modem testing";
+    homepage = https://github.com/jpakkane/ofono-phonesim;
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ jtojnar ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/development/tools/ofono-phonesim/qt5-compat.patch b/pkgs/development/tools/ofono-phonesim/qt5-compat.patch
new file mode 100644
index 00000000000..e2e9dcebd6b
--- /dev/null
+++ b/pkgs/development/tools/ofono-phonesim/qt5-compat.patch
@@ -0,0 +1,48 @@
+diff --git a/configure.ac b/configure.ac
+index 2436292..993df87 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -21,18 +21,18 @@ AC_ARG_ENABLE(optimization, AC_HELP_STRING([--disable-optimization],
+ 	fi
+ ])
+ 
+-PKG_CHECK_MODULES(QT, QtCore QtGui QtXml QtNetwork QtScript QtDBus, dummy=yes,
++PKG_CHECK_MODULES(QT, Qt5Core Qt5Gui Qt5Widgets Qt5Xml Qt5Network Qt5Script Qt5DBus, dummy=yes,
+ 						AC_MSG_ERROR(Qt is required))
+ AC_SUBST(QT_CFLAGS)
+ AC_SUBST(QT_LIBS)
+ 
+ AC_MSG_CHECKING(for moc)
+-MOC="`$PKG_CONFIG --variable=moc_location QtCore`"
++MOC="`$PKG_CONFIG --variable=moc_location Qt5Core`"
+ AC_SUBST(MOC)
+ AC_MSG_RESULT($MOC)
+ 
+ AC_MSG_CHECKING(for uic)
+-UIC="`$PKG_CONFIG --variable=uic_location QtCore`"
++UIC="`$PKG_CONFIG --variable=uic_location Qt5Core`"
+ AC_SUBST(UIC)
+ AC_MSG_RESULT($UIC)
+ 
+diff --git a/src/control.cpp b/src/control.cpp
+index e1838a6..880da68 100644
+--- a/src/control.cpp
++++ b/src/control.cpp
+@@ -22,7 +22,7 @@
+ #include <qslider.h>
+ #include <qcheckbox.h>
+ #include <qcombobox.h>
+-#include <QtGui/qmessagebox.h>
++#include <QMessageBox>
+ #include <qfiledialog.h>
+ #include <Qt>
+ #include <qbuffer.h>
+@@ -31,7 +31,7 @@
+ #include <QFileInfo>
+ #include <QFile>
+ #include <QDir>
+-#include <QtGui/QHeaderView>
++#include <QHeaderView>
+ 
+ #define TWO_BYTE_MAX 65535
+ #define FOUR_CHAR 4
diff --git a/pkgs/development/tools/parsing/tree-sitter/default.nix b/pkgs/development/tools/parsing/tree-sitter/default.nix
new file mode 100644
index 00000000000..989107a2fbe
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/default.nix
@@ -0,0 +1,106 @@
+{ lib, stdenv
+, fetchgit, fetchFromGitHub, fetchurl
+, writeShellScript, runCommand
+, rustPlatform, jq, nix-prefetch-git, xe, curl
+}:
+
+# TODO: move to carnix or https://github.com/kolloch/crate2nix
+let
+  # to update:
+  # 1) change all these hashes
+  # 2) nix-build -A tree-sitter.updater.update-all-grammars
+  # 3) run the script that is output by that (it updates ./grammars)
+  version = "0.15.7";
+  sha256 = "0q6w8wl4a4s49xlgbv531pandzrj3n12hc1cwfshzcgikx303dg0";
+  sha256Js = "11ig4cc2m85siyhafh4hq9sjb5if4gfwsf9k87izkxpiyflda0wp";
+  sha256Wasm = "1zm4bvjri8ivhah3sy22mx6jbvibgbn2hk67d148j3nyka3y4gc0";
+  cargoSha256 = "0ls9cb2p6cgqvnrmx72n79ga7687n8mzhh7n8n1pzv11r6cah9ki";
+
+
+  src = fetchFromGitHub {
+    owner = "tree-sitter";
+    repo = "tree-sitter";
+    rev = version;
+    inherit sha256;
+    fetchSubmodules = true;
+  };
+
+  fetchDist = {file, sha256}: fetchurl {
+    url = "https://github.com/tree-sitter/tree-sitter/releases/download/${version}/${file}";
+    inherit sha256;
+  };
+
+  # TODO: not distributed anymore; needed for the web-ui module,
+  # see also the disable-web-ui patch.
+  # TODO: build those instead of downloading prebuilt
+  # js = fetchDist {
+  #   file = "tree-sitter.js";
+  #   sha256 = sha256Js;
+  # };
+  # wasm = fetchDist {
+  #   file = "tree-sitter.wasm";
+  #   sha256 = sha256Wasm;
+  # };
+
+  update-all-grammars = import ./update.nix {
+    inherit writeShellScript nix-prefetch-git curl jq xe src;
+  };
+
+  grammars =
+    let fetch =
+      (v: fetchgit {inherit (v) url rev sha256 fetchSubmodules; });
+    in runCommand "grammars" {} (''
+       mkdir $out
+     '' + (lib.concatStrings (lib.mapAttrsToList
+            (name: grammar: "ln -s ${fetch grammar} $out/${name}\n")
+            (import ./grammars))));
+
+
+in rustPlatform.buildRustPackage {
+  pname = "tree-sitter";
+  inherit version;
+  inherit src;
+
+  patches = [
+    # the web ui requires tree-sitter compiled to js and wasm
+    ./disable-web-ui.patch
+  ];
+
+  postPatch = ''
+    # needed for the tests
+    rm -rf test/fixtures/grammars
+    ln -s ${grammars} test/fixtures/grammars
+  '';
+
+  passthru = {
+    updater = {
+      inherit update-all-grammars;
+    };
+    inherit grammars;
+  };
+
+  inherit cargoSha256;
+
+  meta = {
+    homepage = "https://github.com/tree-sitter/tree-sitter";
+    description = "A parser generator tool and an incremental parsing library";
+    longDescription = ''
+      Tree-sitter is a parser generator tool and an incremental parsing library.
+      It can build a concrete syntax tree for a source file and efficiently update the syntax tree as the source file is edited.
+
+      Tree-sitter aims to be:
+
+      * General enough to parse any programming language
+      * Fast enough to parse on every keystroke in a text editor
+      * Robust enough to provide useful results even in the presence of syntax errors
+      * Dependency-free so that the runtime library (which is written in pure C) can be embedded in any application
+    '';
+    platforms = lib.platforms.all;
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ Profpatsch ];
+    # Darwin needs some more work with default libraries
+    # Aarch has test failures with how tree-sitter compiles the generated C files
+    broken = stdenv.isDarwin || stdenv.isAarch64;
+  };
+
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/disable-web-ui.patch b/pkgs/development/tools/parsing/tree-sitter/disable-web-ui.patch
new file mode 100644
index 00000000000..6065aa9e7fd
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/disable-web-ui.patch
@@ -0,0 +1,37 @@
+diff --git a/cli/src/lib.rs b/cli/src/lib.rs
+index 33a9904f..633032d7 100644
+--- a/cli/src/lib.rs
++++ b/cli/src/lib.rs
+@@ -8,7 +8,7 @@ pub mod parse;
+ pub mod test;
+ pub mod util;
+ pub mod wasm;
+-pub mod web_ui;
++// pub mod web_ui;
+ 
+ #[cfg(test)]
+ mod tests;
+diff --git a/cli/src/main.rs b/cli/src/main.rs
+index 23e7fc1a..9d784c8a 100644
+--- a/cli/src/main.rs
++++ b/cli/src/main.rs
+@@ -4,7 +4,7 @@ use std::{env, fs, u64};
+ use std::path::Path;
+ use std::process::exit;
+ use tree_sitter_cli::{
+-    config, error, generate, highlight, loader, logger, parse, test, wasm, web_ui,
++    config, error, generate, highlight, loader, logger, parse, test, wasm,
+ };
+ 
+ const BUILD_VERSION: &'static str = env!("CARGO_PKG_VERSION");
+@@ -250,7 +250,9 @@ fn run() -> error::Result<()> {
+         let grammar_path = current_dir.join(matches.value_of("path").unwrap_or(""));
+         wasm::compile_language_to_wasm(&grammar_path, matches.is_present("docker"))?;
+     } else if matches.subcommand_matches("web-ui").is_some() {
+-        web_ui::serve(&current_dir);
++        print!("ERROR: web-ui is not available in the nixpkgs tree-sitter-cli at the moment.");
++        std::process::exit(1);
++        // web_ui::serve(&current_dir);
+     }
+ 
+     Ok(())
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
new file mode 100644
index 00000000000..b6451bce728
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
@@ -0,0 +1,15 @@
+{
+  bash = (builtins.fromJSON (builtins.readFile ./tree-sitter-bash.json));
+  c = (builtins.fromJSON (builtins.readFile ./tree-sitter-c.json));
+  cpp = (builtins.fromJSON (builtins.readFile ./tree-sitter-cpp.json));
+  embedded-template = (builtins.fromJSON (builtins.readFile ./tree-sitter-embedded-template.json));
+  go = (builtins.fromJSON (builtins.readFile ./tree-sitter-go.json));
+  html = (builtins.fromJSON (builtins.readFile ./tree-sitter-html.json));
+  javascript = (builtins.fromJSON (builtins.readFile ./tree-sitter-javascript.json));
+  json = (builtins.fromJSON (builtins.readFile ./tree-sitter-json.json));
+  python = (builtins.fromJSON (builtins.readFile ./tree-sitter-python.json));
+  # wasn’t able to check out with fetchgit
+  # ruby = (builtins.fromJSON (builtins.readFile ./tree-sitter-ruby.json));
+  rust = (builtins.fromJSON (builtins.readFile ./tree-sitter-rust.json));
+  typescript = (builtins.fromJSON (builtins.readFile ./tree-sitter-typescript.json));
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-bash.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-bash.json
new file mode 100644
index 00000000000..c367d24d09f
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-bash.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-bash",
+  "rev": "7b8adcf484e27b6c1a707ce28123e55dd4b7a844",
+  "date": "2019-07-26T14:05:41-06:00",
+  "sha256": "047p51ab4fqm55xqss6z74iyj1hlndql97dv9fifckczx3d5xn5g",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-c.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-c.json
new file mode 100644
index 00000000000..1342f7d092b
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-c.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-c",
+  "rev": "22decdc361767838dd36f1da4125b35b5b9a3c28",
+  "date": "2019-07-02T15:49:42-07:00",
+  "sha256": "03f9g49l4g2l4hlafr3xhvi8d3a491k5zz4bxpq7391l5wgjy3zi",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-cpp.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-cpp.json
new file mode 100644
index 00000000000..8c7d10f2654
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-cpp.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-cpp",
+  "rev": "f5afa0ee48ad1dc067ed6fe1aa2cfd2a3ea5d443",
+  "date": "2019-08-06T17:23:46-07:00",
+  "sha256": "1w9zjqj232fcagqfqd8qi4kmvr655s4ivllrm27973sda4xq557h",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-embedded-template.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-embedded-template.json
new file mode 100644
index 00000000000..89940ffec8c
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-embedded-template.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-embedded-template",
+  "rev": "71955edec8cb762f63e94cf062fc96b52b9ae609",
+  "date": "2019-07-17T15:55:22-07:00",
+  "sha256": "1ar2n1z2h194lb3isbdkmvhn8w78j4a62nbh105w3jl1sxb4qpsa",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-go.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-go.json
new file mode 100644
index 00000000000..6a354f5c2e2
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-go.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-go",
+  "rev": "475571bb5bdb9b229c6be3843d4c71ba747688fd",
+  "date": "2019-07-17T15:51:06-07:00",
+  "sha256": "1cg5qpifrvpnsi0iy26g156xib2qa55vlna41hw6c70kx8ibvl9z",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-html.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-html.json
new file mode 100644
index 00000000000..732d2dda40b
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-html.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-html",
+  "rev": "aeb2f456b8c6a60b8475d075889d476a165cde57",
+  "date": "2019-07-17T15:57:54-07:00",
+  "sha256": "0ba8zi65kja6p7f5h7pa7kxqa3mj29ysjrvl84am24vy5ik4zz3z",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-javascript.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-javascript.json
new file mode 100644
index 00000000000..a1e29e1504e
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-javascript.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-javascript",
+  "rev": "a730b5c210904e2e3c1f601125a059fde1b35850",
+  "date": "2019-08-08T14:13:17-07:00",
+  "sha256": "1cr0vikbzrklksjj07fh34a5cabkgbpkbxwiw2alnana3zzzdhnq",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-json.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-json.json
new file mode 100644
index 00000000000..2bb0dcd4d8f
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-json.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-json",
+  "rev": "337f55be9b9b1ccb0baa7763bfe014a94acea7ea",
+  "date": "2019-05-23T11:02:26-04:00",
+  "sha256": "0amh4qrjj3fli9c0z6p61z9d7496sqq54i1gh2vrghgnbbyaa6mz",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-python.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-python.json
new file mode 100644
index 00000000000..f46695edfa8
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-python.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-python",
+  "rev": "4c22de0944cd42a5c86ade7ef7097033604796f8",
+  "date": "2019-07-30T15:35:03-04:00",
+  "sha256": "1p12h7hj1ak15fyk4gw9wcmgzydd4z5mikhjp54mn1q4vfw175p3",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-ruby.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-ruby.json
new file mode 100644
index 00000000000..e2f9928c870
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-ruby.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-ruby",
+  "rev": "db91c934ff9d3d4ea67111a0f581532c49c3a6b3",
+  "date": "2019-07-26T15:51:54-06:00",
+  "sha256": "1ir1nqpz0c0hnsqzp90w2iw1gy3z3nqil2fm4n3zmid5di7c98dg",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-rust.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-rust.json
new file mode 100644
index 00000000000..328b337ed5a
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-rust.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-rust",
+  "rev": "3f956b18a6b0a576ed238cc69d5e3f413bd547b1",
+  "date": "2019-07-18T11:44:02-07:00",
+  "sha256": "0dwxg3pqirqm1lvl5x0q9djavfri9ffk5diygqzjnx53rwqhyzj8",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-typescript.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-typescript.json
new file mode 100644
index 00000000000..61507888154
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-typescript.json
@@ -0,0 +1,7 @@
+{
+  "url": "https://github.com/tree-sitter/tree-sitter-typescript",
+  "rev": "ab9ab6cced868ee3e096f33fa21fd9d356c92e1a",
+  "date": "2019-08-08T14:27:32-07:00",
+  "sha256": "11r0vj1dhv0my2cr442mwvaav8ljygsns20w51mwg7328vlz90q3",
+  "fetchSubmodules": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/update.nix b/pkgs/development/tools/parsing/tree-sitter/update.nix
new file mode 100644
index 00000000000..aa87df6bed1
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/update.nix
@@ -0,0 +1,68 @@
+{ writeShellScript, nix-prefetch-git
+, curl, jq, xe
+, src }:
+
+let
+  # print all the grammar names mentioned in the fetch-fixtures script
+  getGrammarNames = writeShellScript "get-grammars.sh" ''
+    set -euo pipefail
+    sed -ne 's/^fetch_grammar \(\S*\).*$/\1/p' \
+      ${src}/script/fetch-fixtures
+  '';
+
+  # TODO
+  urlEscape = x: x;
+  # TODO
+  urlEscapeSh = writeShellScript "escape-url" ''printf '%s' "$1"'';
+
+  # generic bash script to find the latest github release for a repo
+  latestGithubRelease = { owner }: writeShellScript "latest-github-release" ''
+    set -euo pipefail
+    repo="$1"
+    res=$(${curl}/bin/curl \
+      --silent \
+      "https://api.github.com/repos/${urlEscape owner}/$(${urlEscapeSh} "$repo")/releases/latest")
+    if [[ "$(printf "%s" "$res" | ${jq}bin/jq '.message')" =~ "rate limit" ]]; then
+      echo "rate limited" >&2
+    fi
+    release=$(printf "%s" "$res" | ${jq}/bin/jq '.tag_name')
+    # github sometimes returns an empty list even tough there are releases
+    if [ "$release" = "null" ]; then
+      echo "uh-oh, latest for $repo is not there, using HEAD" >&2
+      release="HEAD"
+    fi
+    echo "$release"
+  '';
+
+  # update one tree-sitter grammar repo and print their nix-prefetch-git output
+  updateGrammar = { owner }: writeShellScript "update-grammar.sh" ''
+    set -euo pipefail
+    repo="$1"
+    latest="$(${latestGithubRelease { inherit owner; }} "$repo")"
+    echo "Fetching latest release ($latest) of $repo …" >&2
+    ${nix-prefetch-git}/bin/nix-prefetch-git \
+      --quiet \
+      --no-deepClone \
+      --url "https://github.com/${urlEscape owner}/$(${urlEscapeSh} "$repo")" \
+      --rev "$latest"
+    '';
+
+  update-all-grammars = writeShellScript "update-all-grammars.sh" ''
+    set -euo pipefail
+    grammarNames=$(${getGrammarNames})
+    outputDir="${toString ./.}/grammars"
+    mkdir -p "$outputDir"
+    updateCommand=$(printf \
+      '${updateGrammar { owner = "tree-sitter"; }} "$1" > "%s/$1.json"' \
+      "$outputDir")
+    printf '%s' "$grammarNames" \
+      | ${xe}/bin/xe printf "tree-sitter-%s\n" {} \
+      | ${xe}/bin/xe -j2 -s "$updateCommand"
+    ( echo "{"
+      printf '%s' "$grammarNames" \
+        | ${xe}/bin/xe -s 'printf "  %s = (builtins.fromJSON (builtins.readFile ./tree-sitter-%s.json));\n" "$1" "$1"'
+      echo "}" ) \
+      > "$outputDir/default.nix"
+  '';
+
+in update-all-grammars
diff --git a/pkgs/development/tools/rust/cargo-expand/default.nix b/pkgs/development/tools/rust/cargo-expand/default.nix
index d7e37e61d50..43b3a88f6ee 100644
--- a/pkgs/development/tools/rust/cargo-expand/default.nix
+++ b/pkgs/development/tools/rust/cargo-expand/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "cargo-expand";
-  version = "0.4.14";
+  version = "0.4.15";
 
   src = fetchFromGitHub {
     owner = "dtolnay";
     repo = pname;
     rev = version;
-    sha256 = "0i59m34lav3cmrazaxfraj3jk5mdi5fgaq8p7l4s8qr1fpmmw9vy";
+    sha256 = "155b4azkrr0qfg52mk7934zavwsbl28i28hi1inb23d509hrr5ky";
   };
 
-  cargoSha256 = "1sjbcgscgvjq4qpcljrsj1dyxbr10jl6wpp27xh3bv8c2rv4bzz8";
+  cargoSha256 = "050q4rk1x3jghinxg6gszi993a6zbg41vg535dlvvsqi36l278qc";
 
   buildInputs = [ llvmPackages.libclang ]
     ++ stdenv.lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.Security;
diff --git a/pkgs/misc/scrcpy/default.nix b/pkgs/misc/scrcpy/default.nix
index 20ba1295c42..bfca574cd49 100644
--- a/pkgs/misc/scrcpy/default.nix
+++ b/pkgs/misc/scrcpy/default.nix
@@ -2,6 +2,7 @@
 , meson
 , ninja
 , pkgconfig
+, fetchpatch
 
 , platform-tools
 , ffmpeg
@@ -9,10 +10,10 @@
 }:
 
 let
-  version = "1.8";
+  version = "1.10";
   prebuilt_server = fetchurl {
     url = "https://github.com/Genymobile/scrcpy/releases/download/v${version}/scrcpy-server-v${version}.jar";
-    sha256 = "1h755k5xpchlm7wq2yk5mlwjnh7y4yhviffixacby0srj3pmb443";
+    sha256 = "144k25x6ha89l9p5a1dm6r3fqvgqszzwrhvkvk0r44vg0i71msyb";
   };
 in
 stdenv.mkDerivation rec {
@@ -23,7 +24,7 @@ stdenv.mkDerivation rec {
     owner = "Genymobile";
     repo = pname;
     rev = "v${version}";
-    sha256 = "1cx7y3w699s3i8s53l1mb7lkrnbix457hf17liwh00jzb0i7aga7";
+    sha256 = "0hhncqcs49n9g8sgvwbyvkaq4b1dhrpn7qgnaj6grjcb0i27vzaq";
   };
 
   # postPatch:
@@ -39,12 +40,18 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ ffmpeg SDL2 ];
 
+  # FIXME: remove on update to > 1.10
+  patches = [(fetchpatch {
+    url = "https://github.com/Genymobile/scrcpy/commit/c05056343b56be65ae887f8b7ead61a8072622b9.diff";
+    sha256 = "1xh24gr2g2i9rk0zyv19jx54hswrq12ssp227vxbhsbamin9ir5b";
+  })];
+
   # Manually install the server jar to prevent Meson from "fixing" it
   preConfigure = ''
     echo -n > server/meson.build
   '';
 
-  mesonFlags = ["-Doverride_server_path=${prebuilt_server}"];
+  mesonFlags = [ "-Doverride_server_path=${prebuilt_server}" ];
   postInstall = ''
     mkdir -p "$out/share/scrcpy"
     ln -s "${prebuilt_server}" "$out/share/scrcpy/scrcpy-server.jar"
diff --git a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
index 76a0ae2fcf1..4516af19a4e 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing-bcachefs.nix
@@ -1,13 +1,13 @@
 { stdenv, buildPackages, fetchgit, fetchpatch, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "5.1.2019.07.13";
+  version = "5.1.2019.08.21";
   modDirVersion = "5.1.0";
 
   src = fetchgit {
     url = "https://evilpiepirate.org/git/bcachefs.git";
-    rev = "22776fe9902b0b06d6aa18cd4c7f0c5ad35a95fa";
-    sha256 = "0ly4vxawj8skh55c541zll3b8g6igiaq7aj33fklfjh0icmgzs60";
+    rev = "ece184f718c2b678738bc2c42906e90eeb8ba7dc";
+    sha256 = "08cbisgcww8fklpxwqkm2c8ddz0mm7v11ycp7ch0kalwdv2f81lr";
   };
 
   extraConfig = "BCACHEFS_FS m";
diff --git a/pkgs/servers/limesurvey/default.nix b/pkgs/servers/limesurvey/default.nix
index ad1038bbc47..21863018087 100644
--- a/pkgs/servers/limesurvey/default.nix
+++ b/pkgs/servers/limesurvey/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "limesurvey";
-  version = "3.17.1+190408";
+  version = "3.17.12+190823";
 
   src = fetchFromGitHub {
     owner = "LimeSurvey";
     repo = "LimeSurvey";
     rev = version;
-    sha256 = "0d6dgw9af492vn5yg2hq82ipq4p80c19lhky0dpwrm5kv67kxbhv";
+    sha256 = "1i7jpxndrbya5ggl4babscwzmxx4c0jwri5kpl7h2ihqrn90m4b5";
   };
 
   phpConfig = writeText "config.php" ''
@@ -18,9 +18,13 @@ stdenv.mkDerivation rec {
   '';
 
   installPhase = ''
+    runHook preInstall
+
     mkdir -p $out/share/limesurvey
     cp -r . $out/share/limesurvey
     cp ${phpConfig} $out/share/limesurvey/application/config/config.php
+
+    runHook postInstall
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/servers/mail/exim/default.nix b/pkgs/servers/mail/exim/default.nix
index a537a4c6d00..25a94cd27bf 100644
--- a/pkgs/servers/mail/exim/default.nix
+++ b/pkgs/servers/mail/exim/default.nix
@@ -3,6 +3,7 @@
 , enableMySQL ? false, mysql, zlib
 , enableAuthDovecot ? false, dovecot
 , enablePAM ? false, pam
+, enableSPF ? true, libspf2
 }:
 
 stdenv.mkDerivation rec {
@@ -18,7 +19,8 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional enableLDAP openldap
     ++ stdenv.lib.optionals enableMySQL [ mysql.connector-c zlib ]
     ++ stdenv.lib.optional enableAuthDovecot dovecot
-    ++ stdenv.lib.optional enablePAM pam;
+    ++ stdenv.lib.optional enablePAM pam
+    ++ stdenv.lib.optional enableSPF libspf2;
 
   preBuild = ''
     sed '
@@ -64,6 +66,10 @@ stdenv.mkDerivation rec {
         s:^\(EXTRALIBS_EXIM\)=\(.*\):\1=\2 -lpam:
         s:^# \(EXTRALIBS_EXIM\)=.*:\1=-lpam:
       ''}
+      ${stdenv.lib.optionalString enableSPF ''
+        s:^# \(SUPPORT_SPF\)=.*:\1=yes:
+        s:^# \(LDFLAGS += -lspf2\):\1:
+      ''}
       #/^\s*#.*/d
       #/^\s*$/d
     ' < src/EDITME > Local/Makefile
diff --git a/pkgs/servers/plex/raw.nix b/pkgs/servers/plex/raw.nix
index 9f3cd508fb0..250e6e1b844 100644
--- a/pkgs/servers/plex/raw.nix
+++ b/pkgs/servers/plex/raw.nix
@@ -8,13 +8,13 @@
 # server, and the FHS userenv and corresponding NixOS module should
 # automatically pick up the changes.
 stdenv.mkDerivation rec {
-  version = "1.16.4.1469-6d5612c2f";
+  version = "1.16.5.1488-deeb86e7f";
   pname = "plexmediaserver";
 
   # Fetch the source
   src = fetchurl {
     url = "https://downloads.plex.tv/plex-media-server-new/${version}/redhat/plexmediaserver-${version}.x86_64.rpm";
-    sha256 = "16ifgqsxgpqyd1m0xmwrrv4cic1yccklv1jlv7fhq8wc6vz9l6lx";
+    sha256 = "0kgcbq3jfvmigza8a9ak215q2cpi18vh96gx01hppk51m9ibkrwi";
   };
 
   outputs = [ "out" "basedb" ];
diff --git a/pkgs/shells/bash/bash-5.0-patches.nix b/pkgs/shells/bash/bash-5.0-patches.nix
index 560aef16644..90bbc5e37dd 100644
--- a/pkgs/shells/bash/bash-5.0-patches.nix
+++ b/pkgs/shells/bash/bash-5.0-patches.nix
@@ -8,4 +8,6 @@ patch: [
 (patch "005" "0xl2kyzm84nlyklrqzkn73ixabhzfhn9x91lzcmis89cppclvxav")
 (patch "006" "0844749ixk1z60437nkznzms1f0nzh9an62kj7sny6r0zyk2k1fn")
 (patch "007" "16xg37gp1b8zlj5969w8mcrparwqlcbj9695vn3qhgb7wdz1xd0p")
+(patch "008" "1qyp19krjh8zxvb0jgwmyjz40djslwcf4xi7kc1ab0iaca44bipf")
+(patch "009" "00yrjjqd95s81b21qq3ba1y7h879q8jaajlkjggc6grhcwbs4g7d")
 ]
diff --git a/pkgs/tools/X11/xdg-user-dirs/default.nix b/pkgs/tools/X11/xdg-user-dirs/default.nix
index c72fab015d9..066b566be1f 100644
--- a/pkgs/tools/X11/xdg-user-dirs/default.nix
+++ b/pkgs/tools/X11/xdg-user-dirs/default.nix
@@ -11,8 +11,9 @@ stdenv.mkDerivation rec {
   buildInputs = [ libxslt docbook_xsl makeWrapper ];
 
   preFixup = ''
+    # fallback values need to be last
     wrapProgram "$out/bin/xdg-user-dirs-update" \
-      --prefix XDG_CONFIG_DIRS : "$out/etc/xdg"
+      --suffix XDG_CONFIG_DIRS : "$out/etc/xdg"
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/tools/X11/xpra/default.nix b/pkgs/tools/X11/xpra/default.nix
index 863c02fb23d..ffede7d58b2 100644
--- a/pkgs/tools/X11/xpra/default.nix
+++ b/pkgs/tools/X11/xpra/default.nix
@@ -14,11 +14,11 @@ let
   xf86videodummy = callPackage ./xf86videodummy { };
 in buildPythonApplication rec {
   pname = "xpra";
-  version = "2.5";
+  version = "2.5.3";
 
   src = fetchurl {
     url = "https://xpra.org/src/${pname}-${version}.tar.xz";
-    sha256 = "0q6c7ijgpp2wk6jlh0pzqki1w60i36wyl2zfwkg0gpdh40ypab3x";
+    sha256 = "1ys35lj28903alccks9p055psy1fsk1nxi8ncchvw8bfxkkkvbys";
   };
 
   patches = [
@@ -56,7 +56,7 @@ in buildPythonApplication rec {
   propagatedBuildInputs = with python3.pkgs; [
     pillow rencode pycrypto cryptography pycups lz4 dbus-python
     netifaces numpy pygobject3 pycairo gst-python pam
-    pyopengl paramiko opencv python-uinput pyxdg
+    pyopengl paramiko opencv4 python-uinput pyxdg
     ipaddress idna
   ];
 
diff --git a/pkgs/tools/X11/xpra/fix-paths.patch b/pkgs/tools/X11/xpra/fix-paths.patch
index ac8107235be..eb982682586 100644
--- a/pkgs/tools/X11/xpra/fix-paths.patch
+++ b/pkgs/tools/X11/xpra/fix-paths.patch
@@ -1,15 +1,8 @@
+gdiff --git a/setup.py b/setup.py
+index 8d3df15..6156206 100755
 --- a/setup.py
 +++ b/setup.py
-@@ -1885,7 +1885,7 @@
-     if OSX:
-         pycairo = "py3cairo"
-     else:
--        pycairo = "pycairo"
-+        pycairo = "py3cairo"
-     cython_add(Extension("xpra.client.gtk3.cairo_workaround",
-                 ["xpra/client/gtk3/cairo_workaround.pyx"],
-                 **pkgconfig(pycairo)
-@@ -2363,10 +2363,7 @@
+@@ -2359,10 +2359,7 @@ if v4l2_ENABLED:
      v4l2_pkgconfig = pkgconfig()
      #fuly warning: cython makes this difficult,
      #we have to figure out if "device_caps" exists in the headers:
@@ -21,14 +14,16 @@
      kwargs = {"ENABLE_DEVICE_CAPS" : ENABLE_DEVICE_CAPS}
      make_constants("xpra", "codecs", "v4l2", "constants", **kwargs)
      cython_add(Extension("xpra.codecs.v4l2.pusher",
+diff --git a/xpra/x11/bindings/keyboard_bindings.pyx b/xpra/x11/bindings/keyboard_bindings.pyx
+index bd7023d..064c6b5 100644
 --- a/xpra/x11/bindings/keyboard_bindings.pyx
 +++ b/xpra/x11/bindings/keyboard_bindings.pyx
-@@ -19,7 +19,7 @@
- 
+@@ -21,7 +21,7 @@ from libc.stdlib cimport free, malloc
+
  DEF PATH_MAX = 1024
  DEF DFLT_XKB_RULES_FILE = b"base"
 -DEF DFLT_XKB_CONFIG_ROOT = b"/usr/share/X11/xkb"
 +DEF DFLT_XKB_CONFIG_ROOT = b"@xkeyboardconfig@/share/X11/xkb"
- 
+
  ###################################
  # Headers, python magic
diff --git a/pkgs/tools/filesystems/bcachefs-tools/default.nix b/pkgs/tools/filesystems/bcachefs-tools/default.nix
index e3ee04f6e2e..95923f202cf 100644
--- a/pkgs/tools/filesystems/bcachefs-tools/default.nix
+++ b/pkgs/tools/filesystems/bcachefs-tools/default.nix
@@ -3,12 +3,12 @@
 
 stdenv.mkDerivation rec {
   pname = "bcachefs-tools";
-  version = "2019-07-13";
+  version = "2019-08-21";
 
   src = fetchgit {
     url = "https://evilpiepirate.org/git/bcachefs-tools.git";
-    rev = "692eadd6ca9b45f12971126b326b6a89d7117e67";
-    sha256 = "0d2kqy5p89qjrk38iqfk9zsh14c2x40d21kic9kcybdhalfq5q31";
+    rev = "72a408f84846fe702b8db4f158b678ee20bbf835";
+    sha256 = "0y5700afv1x1i3wnp3g71i3zhyhkwmx79j0irxr63fmg47n0ys1i";
   };
 
   enableParallelBuilding = true;
diff --git a/pkgs/tools/misc/calamares/default.nix b/pkgs/tools/misc/calamares/default.nix
index 070b7a7699c..2c48f995ca2 100644
--- a/pkgs/tools/misc/calamares/default.nix
+++ b/pkgs/tools/misc/calamares/default.nix
@@ -6,12 +6,12 @@
 
 stdenv.mkDerivation rec {
   pname = "calamares";
-  version = "3.2.8";
+  version = "3.2.11";
 
   # release including submodule
   src = fetchurl {
     url = "https://github.com/${pname}/${pname}/releases/download/v${version}/${pname}-${version}.tar.gz";
-    sha256 = "1ymyl12fzxc5jjfbw4pfmgzp036w0dai76f7anilw2bnwfzq5g62";
+    sha256 = "1djrc8p6kll8szycyj86v02jphiw2xwfhn563siykphfqr0jknlw";
   };
 
   buildInputs = [
diff --git a/pkgs/tools/misc/ckb-next/default.nix b/pkgs/tools/misc/ckb-next/default.nix
index 9d2126db9ff..5a647541171 100644
--- a/pkgs/tools/misc/ckb-next/default.nix
+++ b/pkgs/tools/misc/ckb-next/default.nix
@@ -1,7 +1,7 @@
-{ stdenv, fetchFromGitHub, substituteAll, udev
+{ stdenv, mkDerivation, fetchFromGitHub, substituteAll, udev
 , pkgconfig, qtbase, cmake, zlib, kmod }:
 
-stdenv.mkDerivation rec {
+mkDerivation rec {
   version = "0.3.2";
   pname = "ckb-next";
 
diff --git a/pkgs/tools/networking/ofono/0001-Search-connectors-in-OFONO_PLUGIN_PATH.patch b/pkgs/tools/networking/ofono/0001-Search-connectors-in-OFONO_PLUGIN_PATH.patch
new file mode 100644
index 00000000000..eb97209a693
--- /dev/null
+++ b/pkgs/tools/networking/ofono/0001-Search-connectors-in-OFONO_PLUGIN_PATH.patch
@@ -0,0 +1,120 @@
+From 0e0994c9716700c9484b3dccb25f98a9a59d1744 Mon Sep 17 00:00:00 2001
+From: Jan Tojnar <jtojnar@gmail.com>
+Date: Fri, 23 Aug 2019 18:42:51 +0200
+Subject: [PATCH] Search connectors in OFONO_PLUGIN_PATH
+
+Previously, the connectors would only be looked for in a single
+directory, specified during compilation. This patch allows to
+traverse a list of directories provided by an environment variable.
+---
+ src/plugin.c | 77 ++++++++++++++++++++++++++++++++++------------------
+ 1 file changed, 50 insertions(+), 27 deletions(-)
+
+diff --git a/src/plugin.c b/src/plugin.c
+index 924a45ec..f05055c3 100644
+--- a/src/plugin.c
++++ b/src/plugin.c
+@@ -99,35 +99,12 @@ static gboolean check_plugin(struct ofono_plugin_desc *desc,
+ 	return TRUE;
+ }
+ 
+-#include "builtin.h"
+-
+-int __ofono_plugin_init(const char *pattern, const char *exclude)
+-{
+-	gchar **patterns = NULL;
+-	gchar **excludes = NULL;
+-	GSList *list;
+-	GDir *dir;
++static handle_dir(const gchar *plugin_path, const gchar **patterns, const gchar **excludes) {
+ 	const gchar *file;
+ 	gchar *filename;
+-	unsigned int i;
+-
+-	DBG("");
+-
+-	if (pattern)
+-		patterns = g_strsplit_set(pattern, ":, ", -1);
+-
+-	if (exclude)
+-		excludes = g_strsplit_set(exclude, ":, ", -1);
+-
+-	for (i = 0; __ofono_builtin[i]; i++) {
+-		if (check_plugin(__ofono_builtin[i],
+-					patterns, excludes) == FALSE)
+-			continue;
+-
+-		add_plugin(NULL, __ofono_builtin[i]);
+-	}
++	GDir *dir;
+ 
+-	dir = g_dir_open(PLUGINDIR, 0, NULL);
++	dir = g_dir_open(plugin_path, 0, NULL);
+ 	if (dir != NULL) {
+ 		while ((file = g_dir_read_name(dir)) != NULL) {
+ 			void *handle;
+@@ -137,7 +114,7 @@ int __ofono_plugin_init(const char *pattern, const char *exclude)
+ 					g_str_has_suffix(file, ".so") == FALSE)
+ 				continue;
+ 
+-			filename = g_build_filename(PLUGINDIR, file, NULL);
++			filename = g_build_filename(plugin_path, file, NULL);
+ 
+ 			handle = dlopen(filename, RTLD_NOW);
+ 			if (handle == NULL) {
+@@ -168,6 +145,52 @@ int __ofono_plugin_init(const char *pattern, const char *exclude)
+ 
+ 		g_dir_close(dir);
+ 	}
++}
++
++#include "builtin.h"
++
++int __ofono_plugin_init(const char *pattern, const char *exclude)
++{
++	gchar **patterns = NULL;
++	gchar **excludes = NULL;
++	GSList *list;
++	unsigned int i;
++
++	DBG("");
++
++	if (pattern)
++		patterns = g_strsplit_set(pattern, ":, ", -1);
++
++	if (exclude)
++		excludes = g_strsplit_set(exclude, ":, ", -1);
++
++	for (i = 0; __ofono_builtin[i]; i++) {
++		if (check_plugin(__ofono_builtin[i],
++					patterns, excludes) == FALSE)
++			continue;
++
++		add_plugin(NULL, __ofono_builtin[i]);
++	}
++
++
++	const gchar *plugin_path;
++
++	plugin_path = g_getenv ("OFONO_PLUGIN_PATH");
++
++	if (!plugin_path) {
++		gchar **plugin_path_list;
++		gsize i;
++
++		plugin_path_list = g_strsplit (plugin_path, G_SEARCHPATH_SEPARATOR_S, 0);
++
++		for (i = 0; plugin_path_list[i]; i++) {
++			handle_dir(plugin_path_list, patterns, excludes);
++		}
++
++		g_strfreev(plugin_path_list);
++	}
++
++	handle_dir(PLUGINDIR, patterns, excludes);
+ 
+ 	for (list = plugins; list; list = list->next) {
+ 		struct ofono_plugin *plugin = list->data;
+-- 
+2.22.0
+
diff --git a/pkgs/tools/networking/ofono/default.nix b/pkgs/tools/networking/ofono/default.nix
index 1e5bd6b66f5..21d1f9ee067 100644
--- a/pkgs/tools/networking/ofono/default.nix
+++ b/pkgs/tools/networking/ofono/default.nix
@@ -22,6 +22,10 @@ stdenv.mkDerivation rec {
     sha256 = "1qzysmzpgbh6zc3x9xh931wxcazka9wwx727c2k66z9gal2n6n66";
   };
 
+  patches = [
+    ./0001-Search-connectors-in-OFONO_PLUGIN_PATH.patch
+  ];
+
   nativeBuildInputs = [
     autoreconfHook
     pkgconfig
@@ -37,7 +41,7 @@ stdenv.mkDerivation rec {
   ];
 
   configureFlags = [
-    "--with-dbusconfdir=${placeholder ''out''}/etc/dbus-1/system.d"
+    "--with-dbusconfdir=${placeholder ''out''}/share"
     "--with-systemdunitdir=${placeholder ''out''}/lib/systemd/system"
     "--enable-external-ell"
   ];
diff --git a/pkgs/tools/nix/nixpkgs-fmt/default.nix b/pkgs/tools/nix/nixpkgs-fmt/default.nix
index 34715c8673a..51e4e22bc5b 100644
--- a/pkgs/tools/nix/nixpkgs-fmt/default.nix
+++ b/pkgs/tools/nix/nixpkgs-fmt/default.nix
@@ -1,13 +1,13 @@
 { lib, rustPlatform, fetchFromGitHub }:
 rustPlatform.buildRustPackage rec {
   pname = "nixpkgs-fmt";
-  version = "0.2.0";
+  version = "0.3.1";
 
   src = fetchFromGitHub {
     owner = "nix-community";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0sa0263pkpi423f1rdyg90axw9sdmgj8ma1mza0v46qzkwynwgh3";
+    sha256 = "0nz4njmrwacizz9z89ligxr2gyggk65vq9cmd6s4hn133gajf2n1";
   };
 
   cargoSha256 = "0p3qa1asdvw2npav4281lzndjczrzac6fr8z4y61m7rbn363s8sa";
diff --git a/pkgs/tools/security/nmap/default.nix b/pkgs/tools/security/nmap/default.nix
index bf9c7a4fc46..1b66dab35c8 100644
--- a/pkgs/tools/security/nmap/default.nix
+++ b/pkgs/tools/security/nmap/default.nix
@@ -31,11 +31,11 @@ in stdenv.mkDerivation rec {
     ++ optionals stdenv.cc.isClang [(
       # Fixes a compile error due an ambiguous reference to bind(2) in
       # nping/EchoServer.cc, which is otherwise resolved to std::bind.
-      # Also fixes a missing include.
       # https://github.com/nmap/nmap/pull/1363
       fetchpatch {
         url = "https://github.com/nmap/nmap/commit/5bbe66f1bd8cbd3718f5805139e2e8139e6849bb.diff";
-        sha256 = "088r8ylpc9hachsxs4r17cqfa1ncyspbjvkc573lill7rk1r9m0s";
+        includes = [ "nping/EchoServer.cc" ];
+        sha256 = "0xcph9mycy57yryjg253frxyz87c4135rrbndlqw1400c8jxq70c";
       }
     )];
 
diff --git a/pkgs/tools/system/acpica-tools/default.nix b/pkgs/tools/system/acpica-tools/default.nix
index 95fa1047fe5..94da72c54b3 100644
--- a/pkgs/tools/system/acpica-tools/default.nix
+++ b/pkgs/tools/system/acpica-tools/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "acpica-tools";
-  version = "20190703";
+  version = "20190816";
 
   src = fetchurl {
     url = "https://acpica.org/sites/acpica/files/acpica-unix-${version}.tar.gz";
-    sha256 = "031m124a109vv6fx667h4ca2iav0xszrlvif9zcfxcaxbjsn6991";
+    sha256 = "0p7ws106hf8bir9yb1a5m6v3wmvqagxmk3l9rpp4i89vib44vv3s";
   };
 
   NIX_CFLAGS_COMPILE = "-O3";
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ bison flex ];
 
-  installFlags = [ "PREFIX=$(out)" ];
+  installFlags = [ "PREFIX=${placeholder "out"}" ];
 
   meta = with stdenv.lib; {
     description = "ACPICA Tools";
diff --git a/pkgs/tools/typesetting/scdoc/default.nix b/pkgs/tools/typesetting/scdoc/default.nix
index af1e8711f22..9b695100150 100644
--- a/pkgs/tools/typesetting/scdoc/default.nix
+++ b/pkgs/tools/typesetting/scdoc/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "scdoc";
-  version = "1.9.6";
+  version = "1.9.7";
 
   src = fetchurl {
     url = "https://git.sr.ht/~sircmpwn/scdoc/archive/${version}.tar.gz";
-    sha256 = "0a2rxn0pihknvyvfvzib42v9c7zfdg8pi95q40fywwjb9clz59c9";
+    sha256 = "0y9p03dzdaszx02jbkdf3vcs52fqml591cmic5jdch5yznrg03ky";
   };
 
   postPatch = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4a9ab14cd04..ca4b421e6f2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -157,6 +157,8 @@ in
 
   cmark = callPackage ../development/libraries/cmark { };
 
+  cm256cc = callPackage ../development/libraries/cm256cc {  };
+
   conftest = callPackage ../development/tools/conftest {};
 
   corgi = callPackage ../development/tools/corgi { };
@@ -1784,7 +1786,7 @@ in
 
   massren = callPackage ../tools/misc/massren { };
 
-  megasync = callPackage ../applications/misc/megasync { };
+  megasync = libsForQt5.callPackage ../applications/misc/megasync { };
 
   meritous = callPackage ../games/meritous { };
 
@@ -4516,6 +4518,8 @@ in
 
   libsidplayfp = callPackage ../development/libraries/libsidplayfp { };
 
+  libspf2 = callPackage ../development/libraries/libspf2 { };
+
   libsrs2 = callPackage ../development/libraries/libsrs2 { };
 
   libtermkey = callPackage ../development/libraries/libtermkey { };
@@ -5148,6 +5152,8 @@ in
 
   offlineimap = callPackage ../tools/networking/offlineimap { };
 
+  ofono-phonesim = libsForQt5.callPackage ../development/tools/ofono-phonesim/default.nix { };
+
   oh-my-zsh = callPackage ../shells/zsh/oh-my-zsh { };
 
   ola = callPackage ../applications/misc/ola { };
@@ -6254,6 +6260,8 @@ in
 
   sunxi-tools = callPackage ../development/tools/sunxi-tools { };
 
+  sumorobot-manager = python3Packages.callPackage ../applications/science/robotics/sumorobot-manager { };
+
   super = callPackage ../tools/security/super { };
 
   supertux-editor = callPackage ../applications/editors/supertux-editor { };
@@ -8364,6 +8372,8 @@ in
     gputils = null;
   };
 
+  serialdv = callPackage ../development/libraries/serialdv {  };
+
   serpent = callPackage ../development/compilers/serpent { };
 
   shmig = callPackage ../development/tools/database/shmig { };
@@ -10065,6 +10075,8 @@ in
 
   travis = callPackage ../development/tools/misc/travis { };
 
+  tree-sitter = callPackage ../development/tools/parsing/tree-sitter { };
+
   trellis = callPackage ../development/tools/trellis { };
 
   ttyd = callPackage ../servers/ttyd { };
@@ -12559,8 +12571,6 @@ in
 
   luabind_luajit = luabind.override { lua = luajit; };
 
-  luaffi = callPackage ../development/libraries/luaffi { lua = lua5_1; };
-
   lzo = callPackage ../development/libraries/lzo { };
 
   mapnik = callPackage ../development/libraries/mapnik { };
@@ -19017,6 +19027,8 @@ in
 
   iptraf-ng = callPackage ../applications/networking/iptraf-ng { };
 
+  irccloud = callPackage ../applications/networking/irc/irccloud { };
+
   irssi = callPackage ../applications/networking/irc/irssi { };
 
   irssi_fish = callPackage ../applications/networking/irc/irssi/fish { };
@@ -24799,6 +24811,8 @@ in
 
   tsung = callPackage ../applications/networking/tsung {};
 
+  bcompare = libsForQt5.callPackage ../applications/version-management/bcompare {};
+
   qmk_firmware = callPackage ../development/misc/qmk_firmware {
     avrgcc = pkgsCross.avr.buildPackages.gcc;
     avrbinutils = pkgsCross.avr.buildPackages.binutils;
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c5aca3967dc..a591b93bd7c 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5065,6 +5065,8 @@ in {
 
   xarray = callPackage ../development/python-modules/xarray { };
 
+  xapian = callPackage ../development/python-modules/xapian { xapian = pkgs.xapian; };
+
   xlwt = callPackage ../development/python-modules/xlwt { };
 
   xxhash = callPackage ../development/python-modules/xxhash { };