Merge pull request #246386 from hercules-ci/lib-getExe-dont-make-name-assumption

lib.getExe: Do not make assumptions about the main program

54 files changed, 84 insertions, 7 deletions

diff --git a/pkgs/applications/audio/espeak-ng/default.nix b/pkgs/applications/audio/espeak-ng/default.nix
index d53c0ac1caf..5e62399c8a4 100644
--- a/pkgs/applications/audio/espeak-ng/default.nix
+++ b/pkgs/applications/audio/espeak-ng/default.nix
@@ -75,5 +75,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ aske ];
     platforms = platforms.all;
+    mainProgram = "espeak-ng";
   };
 }
diff --git a/pkgs/applications/display-managers/greetd/regreet.nix b/pkgs/applications/display-managers/greetd/regreet.nix
index a520ad88d6e..6cd336821cc 100644
--- a/pkgs/applications/display-managers/greetd/regreet.nix
+++ b/pkgs/applications/display-managers/greetd/regreet.nix
@@ -31,5 +31,6 @@ rustPlatform.buildRustPackage rec {
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ fufexan ];
     platforms = platforms.linux;
+    mainProgram = "regreet";
   };
 }
diff --git a/pkgs/applications/emulators/darling/default.nix b/pkgs/applications/emulators/darling/default.nix
index 988ca796479..cc4d7265ce2 100644
--- a/pkgs/applications/emulators/darling/default.nix
+++ b/pkgs/applications/emulators/darling/default.nix
@@ -227,5 +227,6 @@ in stdenv.mkDerivation {
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ zhaofengli ];
     platforms = [ "x86_64-linux" ];
+    mainProgram = "darling";
   };
 }
diff --git a/pkgs/applications/graphics/openscad/default.nix b/pkgs/applications/graphics/openscad/default.nix
index 94c30fe0a32..37fcc0eb48e 100644
--- a/pkgs/applications/graphics/openscad/default.nix
+++ b/pkgs/applications/graphics/openscad/default.nix
@@ -109,5 +109,6 @@ mkDerivation rec {
     license = lib.licenses.gpl2;
     platforms = lib.platforms.unix;
     maintainers = with lib.maintainers; [ bjornfor raskin gebner ];
+    mainProgram = "openscad";
   };
 }
diff --git a/pkgs/applications/graphics/tesseract/tesseract5.nix b/pkgs/applications/graphics/tesseract/tesseract5.nix
index 614a9e844cc..aa7f17b20c2 100644
--- a/pkgs/applications/graphics/tesseract/tesseract5.nix
+++ b/pkgs/applications/graphics/tesseract/tesseract5.nix
@@ -41,5 +41,6 @@ stdenv.mkDerivation rec {
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ anselmschueler ];
     platforms = lib.platforms.unix;
+    mainProgram = "tesseract";
   };
 }
diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index 13bbf7da085..7b839cdfcb2 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -20,6 +20,7 @@
                                              # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
       maxSilent = 14400; # 4h, double the default of 7200s (c.f. #129212, #129115)
       license = lib.licenses.mpl20;
+      mainProgram = "firefox";
     };
     tests = [ nixosTests.firefox ];
     updateScript = callPackage ./update.nix {
@@ -46,6 +47,7 @@
                                              # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
       maxSilent = 14400; # 4h, double the default of 7200s (c.f. #129212, #129115)
       license = lib.licenses.mpl20;
+      mainProgram = "firefox";
     };
     tests = [ nixosTests.firefox-beta ];
     updateScript = callPackage ./update.nix {
@@ -74,6 +76,7 @@
                                              # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
       maxSilent = 14400; # 4h, double the default of 7200s (c.f. #129212, #129115)
       license = lib.licenses.mpl20;
+      mainProgram = "firefox";
     };
     tests = [ nixosTests.firefox-devedition ];
     updateScript = callPackage ./update.nix {
@@ -104,6 +107,7 @@
       broken = stdenv.buildPlatform.is32bit; # since Firefox 60, build on 32-bit platforms fails with "out of memory".
                                              # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
       license = lib.licenses.mpl20;
+      mainProgram = "firefox";
     };
     tests = [ nixosTests.firefox-esr-102 ];
     updateScript = callPackage ./update.nix {
@@ -132,6 +136,7 @@
       broken = stdenv.buildPlatform.is32bit; # since Firefox 60, build on 32-bit platforms fails with "out of memory".
                                              # not in `badPlatforms` because cross-compilation on 64-bit machine might work.
       license = lib.licenses.mpl20;
+      mainProgram = "firefox";
     };
     tests = [ nixosTests.firefox-esr-115 ];
     updateScript = callPackage ./update.nix {
diff --git a/pkgs/applications/networking/clash-verge/default.nix b/pkgs/applications/networking/clash-verge/default.nix
index 7869ed9a1f7..bbe36cb0d66 100644
--- a/pkgs/applications/networking/clash-verge/default.nix
+++ b/pkgs/applications/networking/clash-verge/default.nix
@@ -60,5 +60,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3Plus;
     sourceProvenance = with sourceTypes; [ binaryNativeCode ];
     maintainers = with maintainers; [ zendo ];
+    mainProgram = "clash-verge";
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/discord/linux.nix b/pkgs/applications/networking/instant-messengers/discord/linux.nix
index 236ceaa0a78..ce94764ed9b 100644
--- a/pkgs/applications/networking/instant-messengers/discord/linux.nix
+++ b/pkgs/applications/networking/instant-messengers/discord/linux.nix
@@ -18,6 +18,7 @@ let
     {
       pythonInterpreter = "${python3.interpreter}";
       configDirName = lib.toLower binaryName;
+      meta.mainProgram = "disable-breaking-updates.py";
     } ''
     mkdir -p $out/bin
     cp ${./disable-breaking-updates.py} $out/bin/disable-breaking-updates.py
diff --git a/pkgs/applications/networking/irc/thelounge/default.nix b/pkgs/applications/networking/irc/thelounge/default.nix
index adb46e2bab7..eff1458e07e 100644
--- a/pkgs/applications/networking/irc/thelounge/default.nix
+++ b/pkgs/applications/networking/irc/thelounge/default.nix
@@ -88,5 +88,6 @@ stdenv.mkDerivation (finalAttrs: {
     maintainers = with maintainers; [ winter raitobezarius ];
     license = licenses.mit;
     inherit (nodejs.meta) platforms;
+    mainProgram = "thelounge";
   };
 })
diff --git a/pkgs/applications/version-management/gitea/default.nix b/pkgs/applications/version-management/gitea/default.nix
index bb696b4087f..89cae801ec2 100644
--- a/pkgs/applications/version-management/gitea/default.nix
+++ b/pkgs/applications/version-management/gitea/default.nix
@@ -88,5 +88,6 @@ buildGoModule rec {
     license = licenses.mit;
     maintainers = with maintainers; [ disassembler kolaente ma27 techknowlogick ];
     broken = stdenv.isDarwin;
+    mainProgram = "gitea";
   };
 }
diff --git a/pkgs/applications/virtualization/kvmtool/default.nix b/pkgs/applications/virtualization/kvmtool/default.nix
index bf134e2cb07..e3b52c411d6 100644
--- a/pkgs/applications/virtualization/kvmtool/default.nix
+++ b/pkgs/applications/virtualization/kvmtool/default.nix
@@ -29,5 +29,6 @@ stdenv.mkDerivation {
     license = licenses.gpl2Only;
     maintainers = with maintainers; [ astro ];
     platforms = [ "x86_64-linux" "aarch64-linux" ];
+    mainProgram = "nvramtool";
   };
 }
diff --git a/pkgs/applications/window-managers/cage/default.nix b/pkgs/applications/window-managers/cage/default.nix
index 6c56c75418f..c94263f8161 100644
--- a/pkgs/applications/window-managers/cage/default.nix
+++ b/pkgs/applications/window-managers/cage/default.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ primeos ];
+    mainProgram = "cage";
   };
 }
diff --git a/pkgs/build-support/writers/scripts.nix b/pkgs/build-support/writers/scripts.nix
index 7fc47fbcdf9..c43f10f0a2e 100644
--- a/pkgs/build-support/writers/scripts.nix
+++ b/pkgs/build-support/writers/scripts.nix
@@ -25,13 +25,21 @@ rec {
       name = last (builtins.split "/" nameOrPath);
     in
 
-    pkgs.runCommandLocal name (if (types.str.check content) then {
-      inherit content interpreter;
-      passAsFile = [ "content" ];
-    } else {
-      inherit interpreter;
-      contentPath = content;
-    }) ''
+    pkgs.runCommandLocal name (
+      lib.optionalAttrs (nameOrPath == "/bin/${name}") {
+        meta.mainProgram = name;
+      }
+      // (
+        if (types.str.check content) then {
+          inherit content interpreter;
+          passAsFile = [ "content" ];
+        } else {
+          inherit interpreter;
+          contentPath = content;
+        }
+      )
+    )
+    ''
       # On darwin a script cannot be used as an interpreter in a shebang but
       # there doesn't seem to be a limit to the size of shebang and multiple
       # arguments to the interpreter are allowed.
@@ -89,6 +97,8 @@ rec {
       # https://github.com/NixOS/nixpkgs/issues/154203
       # https://github.com/NixOS/nixpkgs/issues/148189
       nativeBuildInputs = [ stdenv.cc.bintools ];
+    } // lib.optionalAttrs (nameOrPath == "/bin/${name}") {
+      meta.mainProgram = name;
     }) ''
       ${compileScript}
       ${lib.optionalString strip
diff --git a/pkgs/desktops/gnome/apps/file-roller/default.nix b/pkgs/desktops/gnome/apps/file-roller/default.nix
index 44b7659d30c..97508ed418c 100644
--- a/pkgs/desktops/gnome/apps/file-roller/default.nix
+++ b/pkgs/desktops/gnome/apps/file-roller/default.nix
@@ -73,5 +73,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = teams.gnome.members ++ teams.pantheon.members;
+    mainProgram = "file-roller";
   };
 }
diff --git a/pkgs/development/interpreters/perl/intepreter.nix b/pkgs/development/interpreters/perl/intepreter.nix
index 6d543e7d840..96d6430c14e 100644
--- a/pkgs/development/interpreters/perl/intepreter.nix
+++ b/pkgs/development/interpreters/perl/intepreter.nix
@@ -232,6 +232,7 @@ stdenv.mkDerivation (rec {
     maintainers = [ maintainers.eelco ];
     platforms = platforms.all;
     priority = 6; # in `buildEnv' (including the one inside `perl.withPackages') the library files will have priority over files in `perl`
+    mainProgram = "perl";
   };
 } // lib.optionalAttrs (stdenv.buildPlatform != stdenv.hostPlatform) rec {
   crossVersion = "c876045741f5159318085d2737b0090f35a842ca"; # June 5, 2022
diff --git a/pkgs/development/interpreters/python/cpython/default.nix b/pkgs/development/interpreters/python/cpython/default.nix
index ff103373a10..f84cca760f8 100644
--- a/pkgs/development/interpreters/python/cpython/default.nix
+++ b/pkgs/development/interpreters/python/cpython/default.nix
@@ -572,5 +572,6 @@ in with passthru; stdenv.mkDerivation {
     license = licenses.psfl;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ fridh ];
+    mainProgram = "python3";
   };
 }
diff --git a/pkgs/development/libraries/xdg-dbus-proxy/default.nix b/pkgs/development/libraries/xdg-dbus-proxy/default.nix
index cc7406b1146..c88c7d42b12 100644
--- a/pkgs/development/libraries/xdg-dbus-proxy/default.nix
+++ b/pkgs/development/libraries/xdg-dbus-proxy/default.nix
@@ -46,5 +46,6 @@ stdenv.mkDerivation rec {
     license = licenses.lgpl21Plus;
     maintainers = with maintainers; [ jtojnar ];
     platforms = platforms.linux;
+    mainProgram = "xdg-dbus-proxy";
   };
 }
diff --git a/pkgs/development/python-modules/flake8/default.nix b/pkgs/development/python-modules/flake8/default.nix
index d56d42abf2e..860f449fd8b 100644
--- a/pkgs/development/python-modules/flake8/default.nix
+++ b/pkgs/development/python-modules/flake8/default.nix
@@ -45,5 +45,6 @@ buildPythonPackage rec {
     homepage = "https://github.com/pycqa/flake8";
     license = licenses.mit;
     maintainers = with maintainers; [ dotlambda ];
+    mainProgram = "flake8";
   };
 }
diff --git a/pkgs/development/tools/continuous-integration/woodpecker/agent.nix b/pkgs/development/tools/continuous-integration/woodpecker/agent.nix
index b225db034c1..5bbc4cf99ce 100644
--- a/pkgs/development/tools/continuous-integration/woodpecker/agent.nix
+++ b/pkgs/development/tools/continuous-integration/woodpecker/agent.nix
@@ -12,5 +12,6 @@ buildGoModule {
 
   meta = common.meta // {
     description = "Woodpecker Continuous Integration agent";
+    mainProgram = "woodpecker-agent";
   };
 }
diff --git a/pkgs/development/tools/continuous-integration/woodpecker/server.nix b/pkgs/development/tools/continuous-integration/woodpecker/server.nix
index fd8415c901c..874949dff2f 100644
--- a/pkgs/development/tools/continuous-integration/woodpecker/server.nix
+++ b/pkgs/development/tools/continuous-integration/woodpecker/server.nix
@@ -22,5 +22,6 @@ buildGoModule {
 
   meta = common.meta // {
     description = "Woodpecker Continuous Integration server";
+    mainProgram = "woodpecker-server";
   };
 }
diff --git a/pkgs/development/tools/esbuild/default.nix b/pkgs/development/tools/esbuild/default.nix
index 6179116d0ad..1e7c0b3ff1e 100644
--- a/pkgs/development/tools/esbuild/default.nix
+++ b/pkgs/development/tools/esbuild/default.nix
@@ -23,5 +23,6 @@ buildGoModule rec {
     changelog = "https://github.com/evanw/esbuild/blob/v${version}/CHANGELOG.md";
     license = licenses.mit;
     maintainers = with maintainers; [ lucus16 marsam undefined-moe ];
+    mainProgram = "esbuild";
   };
 }
diff --git a/pkgs/development/tools/esbuild/netlify.nix b/pkgs/development/tools/esbuild/netlify.nix
index ddf5b301d34..68542612292 100644
--- a/pkgs/development/tools/esbuild/netlify.nix
+++ b/pkgs/development/tools/esbuild/netlify.nix
@@ -29,5 +29,6 @@ buildGoModule rec {
     homepage = "https://github.com/netlify/esbuild";
     license = licenses.mit;
     maintainers = with maintainers; [ roberth ];
+    mainProgram = "esbuild";
   };
 }
diff --git a/pkgs/development/tools/geckodriver/default.nix b/pkgs/development/tools/geckodriver/default.nix
index 6f6a937efbe..ef71dc143f1 100644
--- a/pkgs/development/tools/geckodriver/default.nix
+++ b/pkgs/development/tools/geckodriver/default.nix
@@ -26,5 +26,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/mozilla/geckodriver";
     license = licenses.mpl20;
     maintainers = with maintainers; [ jraygauthier ];
+    mainProgram = "geckodriver";
   };
 }
diff --git a/pkgs/development/tools/misc/libtool/default.nix b/pkgs/development/tools/misc/libtool/default.nix
index b9e32372922..6970d2a94ec 100644
--- a/pkgs/development/tools/misc/libtool/default.nix
+++ b/pkgs/development/tools/misc/libtool/default.nix
@@ -34,5 +34,7 @@ stdenv.mkDerivation rec {
 
     license = lib.licenses.gpl2Plus;
     platforms = lib.platforms.unix;
+
+    mainProgram = "libtool";
   };
 }
diff --git a/pkgs/development/tools/misc/libtool/libtool2.nix b/pkgs/development/tools/misc/libtool/libtool2.nix
index a2c58010eff..50c064cadfd 100644
--- a/pkgs/development/tools/misc/libtool/libtool2.nix
+++ b/pkgs/development/tools/misc/libtool/libtool2.nix
@@ -68,5 +68,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     maintainers = [ ];
     platforms = platforms.unix;
+    mainProgram = "libtool";
   };
 }
diff --git a/pkgs/development/tools/misc/tokei/default.nix b/pkgs/development/tools/misc/tokei/default.nix
index a93eee5cb1d..b91460160ce 100644
--- a/pkgs/development/tools/misc/tokei/default.nix
+++ b/pkgs/development/tools/misc/tokei/default.nix
@@ -28,5 +28,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/XAMPPRocky/tokei";
     license = with licenses; [ asl20 /* or */ mit ];
     maintainers = with maintainers; [ gebner lilyball ];
+    mainProgram = "tokei";
   };
 }
diff --git a/pkgs/development/tools/selenium/chromedriver/default.nix b/pkgs/development/tools/selenium/chromedriver/default.nix
index d8201fabb2f..08f067ecbd7 100644
--- a/pkgs/development/tools/selenium/chromedriver/default.nix
+++ b/pkgs/development/tools/selenium/chromedriver/default.nix
@@ -73,5 +73,6 @@ in stdenv.mkDerivation rec {
     # Note from primeos: By updating Chromium I also update Google Chrome and
     # ChromeDriver.
     platforms = attrNames allSpecs;
+    mainProgram = "chromedriver";
   };
 }
diff --git a/pkgs/os-specific/linux/below/default.nix b/pkgs/os-specific/linux/below/default.nix
index 2bdca0805a2..0a91fd58590 100644
--- a/pkgs/os-specific/linux/below/default.nix
+++ b/pkgs/os-specific/linux/below/default.nix
@@ -43,5 +43,6 @@ rustPlatform.buildRustPackage rec {
     description = "A time traveling resource monitor for modern Linux systems";
     license = licenses.asl20;
     homepage = "https://github.com/facebookincubator/below";
+    mainProgram = "below";
   };
 }
diff --git a/pkgs/servers/code-server/default.nix b/pkgs/servers/code-server/default.nix
index 990ab50f28b..0c5cb231085 100644
--- a/pkgs/servers/code-server/default.nix
+++ b/pkgs/servers/code-server/default.nix
@@ -322,5 +322,6 @@ stdenv.mkDerivation (finalAttrs: {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ offline henkery code-asher ];
     platforms = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" ];
+    mainProgram = "code-server";
   };
 })
diff --git a/pkgs/servers/consul/default.nix b/pkgs/servers/consul/default.nix
index 1f9b6806032..6f145137567 100644
--- a/pkgs/servers/consul/default.nix
+++ b/pkgs/servers/consul/default.nix
@@ -42,5 +42,6 @@ buildGoModule rec {
     platforms = platforms.linux ++ platforms.darwin;
     license = licenses.mpl20;
     maintainers = with maintainers; [ pradeepchhetri vdemeester nh2 techknowlogick];
+    mainProgram = "consul";
   };
 }
diff --git a/pkgs/servers/dns/acme-dns/default.nix b/pkgs/servers/dns/acme-dns/default.nix
index 08cd511f182..db6ea4bbea0 100644
--- a/pkgs/servers/dns/acme-dns/default.nix
+++ b/pkgs/servers/dns/acme-dns/default.nix
@@ -30,5 +30,6 @@ buildGoModule rec {
     changelog = "https://github.com/joohoi/acme-dns/releases/tag/${src.rev}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ emilylange ];
+    mainProgram = "acme-dns";
   };
 }
diff --git a/pkgs/servers/ldap/lldap/default.nix b/pkgs/servers/ldap/lldap/default.nix
index 1948ca015dd..3c83fe037a0 100644
--- a/pkgs/servers/ldap/lldap/default.nix
+++ b/pkgs/servers/ldap/lldap/default.nix
@@ -110,5 +110,6 @@ in rustPlatform.buildRustPackage (commonDerivationAttrs // {
     license = licenses.gpl3Only;
     platforms = platforms.linux;
     maintainers = with maintainers; [ emilylange bendlas ];
+    mainProgram = "lldap";
   };
 })
diff --git a/pkgs/servers/monitoring/grafana-agent/default.nix b/pkgs/servers/monitoring/grafana-agent/default.nix
index 3859c2df596..e07621e8213 100644
--- a/pkgs/servers/monitoring/grafana-agent/default.nix
+++ b/pkgs/servers/monitoring/grafana-agent/default.nix
@@ -73,5 +73,6 @@ buildGoModule rec {
     homepage = "https://grafana.com/products/cloud";
     changelog = "https://github.com/grafana/agent/blob/${src.rev}/CHANGELOG.md";
     maintainers = with lib.maintainers; [ flokli emilylange ];
+    mainProgram = "grafana-agent";
   };
 }
diff --git a/pkgs/servers/openvscode-server/default.nix b/pkgs/servers/openvscode-server/default.nix
index 8ce4b7676e4..43f9d7a7fe7 100644
--- a/pkgs/servers/openvscode-server/default.nix
+++ b/pkgs/servers/openvscode-server/default.nix
@@ -219,5 +219,6 @@ stdenv.mkDerivation (finalAttrs: {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ dguenther ghuntley emilytrau ];
     platforms = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+    mainProgram = "openvscode-server";
   };
 })
diff --git a/pkgs/servers/pufferpanel/default.nix b/pkgs/servers/pufferpanel/default.nix
index f1079a03fce..d3420f90db5 100644
--- a/pkgs/servers/pufferpanel/default.nix
+++ b/pkgs/servers/pufferpanel/default.nix
@@ -98,5 +98,6 @@ buildGoModule rec {
     homepage = "https://www.pufferpanel.com/";
     license = with licenses; [ asl20 ];
     maintainers = with maintainers; [ ckie tie ];
+    mainProgram = "pufferpanel";
   };
 }
diff --git a/pkgs/servers/web-apps/kavita/default.nix b/pkgs/servers/web-apps/kavita/default.nix
index 81f07c21319..c7d6e7b9567 100644
--- a/pkgs/servers/web-apps/kavita/default.nix
+++ b/pkgs/servers/web-apps/kavita/default.nix
@@ -73,5 +73,6 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     license = lib.licenses.gpl3Only;
     platforms = lib.platforms.linux;
     maintainers = with lib.maintainers; [ misterio77 ];
+    mainProgram = "kavita";
   };
 })
diff --git a/pkgs/servers/x11/xorg/overrides.nix b/pkgs/servers/x11/xorg/overrides.nix
index 9010d63d5c6..aebfc73c5c1 100644
--- a/pkgs/servers/x11/xorg/overrides.nix
+++ b/pkgs/servers/x11/xorg/overrides.nix
@@ -161,6 +161,9 @@ self: super:
     + lib.optionalString stdenv.hostPlatform.isStatic ''
       export NIX_CFLAGS_LINK="$NIX_CFLAGS_LINK -lXau -lXdmcp"
     '';
+    meta = attrs.meta // {
+      mainProgram = "xdpyinfo";
+    };
   });
 
   xdm = super.xdm.overrideAttrs (attrs: {
@@ -814,6 +817,7 @@ self: super:
         --replace '_X_NORETURN' '__attribute__((noreturn))' \
         --replace 'n_dirs--;' ""
     '';
+    meta.mainProgram = "lndir";
   });
 
   twm = super.twm.overrideAttrs (attrs: {
@@ -940,6 +944,12 @@ self: super:
     '';
   });
 
+  xset = super.xset.overrideAttrs (attrs: {
+    meta = attrs.meta // {
+      mainProgram = "xset";
+    };
+  });
+
   # convert Type1 vector fonts to OpenType fonts
   fontbitstreamtype1 = super.fontbitstreamtype1.overrideAttrs (attrs: {
     nativeBuildInputs = attrs.nativeBuildInputs ++ [ fontforge ];
diff --git a/pkgs/tools/backup/tarsnap/default.nix b/pkgs/tools/backup/tarsnap/default.nix
index 8a0e43b6008..ad7fc761d84 100644
--- a/pkgs/tools/backup/tarsnap/default.nix
+++ b/pkgs/tools/backup/tarsnap/default.nix
@@ -40,5 +40,6 @@ stdenv.mkDerivation rec {
     license     = lib.licenses.unfree;
     platforms   = lib.platforms.unix;
     maintainers = with lib.maintainers; [ thoughtpolice roconnor ];
+    mainProgram = "tarsnap";
   };
 }
diff --git a/pkgs/tools/misc/coreboot-utils/default.nix b/pkgs/tools/misc/coreboot-utils/default.nix
index 1ba4c0aee9e..b96ccfd6fe7 100644
--- a/pkgs/tools/misc/coreboot-utils/default.nix
+++ b/pkgs/tools/misc/coreboot-utils/default.nix
@@ -65,6 +65,7 @@ let
     nvramtool = generic {
       pname = "nvramtool";
       meta.description = "Read and write coreboot parameters and display information from the coreboot table in CMOS/NVRAM";
+      meta.mainProgram = "nvramtool";
     };
     superiotool = generic {
       pname = "superiotool";
diff --git a/pkgs/tools/misc/direnv/default.nix b/pkgs/tools/misc/direnv/default.nix
index 88a07cd07af..179e719528a 100644
--- a/pkgs/tools/misc/direnv/default.nix
+++ b/pkgs/tools/misc/direnv/default.nix
@@ -50,5 +50,6 @@ buildGoModule rec {
     homepage = "https://direnv.net";
     license = licenses.mit;
     maintainers = teams.numtide.members;
+    mainProgram = "direnv";
   };
 }
diff --git a/pkgs/tools/misc/file/default.nix b/pkgs/tools/misc/file/default.nix
index 45f5ed90577..7fad2c381c3 100644
--- a/pkgs/tools/misc/file/default.nix
+++ b/pkgs/tools/misc/file/default.nix
@@ -50,5 +50,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ doronbehar ];
     license = licenses.bsd2;
     platforms = platforms.all;
+    mainProgram = "file";
   };
 }
diff --git a/pkgs/tools/misc/nurl/default.nix b/pkgs/tools/misc/nurl/default.nix
index 00b9e990a8d..16fec1445a5 100644
--- a/pkgs/tools/misc/nurl/default.nix
+++ b/pkgs/tools/misc/nurl/default.nix
@@ -57,5 +57,6 @@ rustPlatform.buildRustPackage rec {
     changelog = "https://github.com/nix-community/nurl/blob/v${version}/CHANGELOG.md";
     license = licenses.mpl20;
     maintainers = with maintainers; [ figsoda ];
+    mainProgram = "nurl";
   };
 }
diff --git a/pkgs/tools/misc/vector/default.nix b/pkgs/tools/misc/vector/default.nix
index b74bd1c9e3c..fd3a94298c6 100644
--- a/pkgs/tools/misc/vector/default.nix
+++ b/pkgs/tools/misc/vector/default.nix
@@ -126,5 +126,6 @@ rustPlatform.buildRustPackage {
     license = licenses.mpl20;
     maintainers = with maintainers; [ thoughtpolice happysalada ];
     platforms = with platforms; all;
+    mainProgram = "vector";
   };
 }
diff --git a/pkgs/tools/misc/xvfb-run/default.nix b/pkgs/tools/misc/xvfb-run/default.nix
index 7b58b9c2d93..fc87723208e 100644
--- a/pkgs/tools/misc/xvfb-run/default.nix
+++ b/pkgs/tools/misc/xvfb-run/default.nix
@@ -60,5 +60,6 @@ stdenvNoCC.mkDerivation rec {
     platforms = platforms.linux;
     license = licenses.gpl2;
     maintainers = [ maintainers.artturin ];
+    mainProgram = "xvfb-run";
   };
 }
diff --git a/pkgs/tools/misc/yt-dlp/default.nix b/pkgs/tools/misc/yt-dlp/default.nix
index 3fa7a9a8076..e274222b27b 100644
--- a/pkgs/tools/misc/yt-dlp/default.nix
+++ b/pkgs/tools/misc/yt-dlp/default.nix
@@ -77,5 +77,6 @@ buildPythonPackage rec {
     '';
     license = licenses.unlicense;
     maintainers = with maintainers; [ mkg20001 SuperSandro2000 marsam ];
+    mainProgram = "yt-dlp";
   };
 }
diff --git a/pkgs/tools/networking/clash-meta/default.nix b/pkgs/tools/networking/clash-meta/default.nix
index 244eab7809b..c7275db6c0a 100644
--- a/pkgs/tools/networking/clash-meta/default.nix
+++ b/pkgs/tools/networking/clash-meta/default.nix
@@ -40,5 +40,6 @@ buildGoModule rec {
     homepage = "https://github.com/MetaCubeX/Clash.Meta";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ oluceps ];
+    mainProgram = "clash-meta";
   };
 }
diff --git a/pkgs/tools/networking/clash/default.nix b/pkgs/tools/networking/clash/default.nix
index 6ddf423657f..7eba0e1f215 100644
--- a/pkgs/tools/networking/clash/default.nix
+++ b/pkgs/tools/networking/clash/default.nix
@@ -40,5 +40,6 @@ buildGoModule rec {
     changelog = "https://github.com/Dreamacro/clash/releases/tag/v${version}";
     license = licenses.gpl3Only;
     maintainers = with maintainers; [ contrun Br1ght0ne ];
+    mainProgram = "clash";
   };
 }
diff --git a/pkgs/tools/networking/sitespeed-io/default.nix b/pkgs/tools/networking/sitespeed-io/default.nix
index 40949e6725a..f7b71b2fb4c 100644
--- a/pkgs/tools/networking/sitespeed-io/default.nix
+++ b/pkgs/tools/networking/sitespeed-io/default.nix
@@ -87,5 +87,6 @@ buildNpmPackage rec {
     license = licenses.mit;
     maintainers = with maintainers; [ misterio77 ];
     platforms = lib.unique (geckodriver.meta.platforms ++ chromedriver.meta.platforms);
+    mainProgram = "sitespeed-io";
   };
 }
diff --git a/pkgs/tools/networking/wgautomesh/default.nix b/pkgs/tools/networking/wgautomesh/default.nix
index 823987888a3..a9843e2efa1 100644
--- a/pkgs/tools/networking/wgautomesh/default.nix
+++ b/pkgs/tools/networking/wgautomesh/default.nix
@@ -21,5 +21,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://git.deuxfleurs.fr/Deuxfleurs/wgautomesh";
     license = licenses.agpl3Only;
     maintainers = [ maintainers.lx ];
+    mainProgram = "wgautomesh";
   };
 }
diff --git a/pkgs/tools/package-management/harmonia/default.nix b/pkgs/tools/package-management/harmonia/default.nix
index 5b815261fbc..cee9301d594 100644
--- a/pkgs/tools/package-management/harmonia/default.nix
+++ b/pkgs/tools/package-management/harmonia/default.nix
@@ -44,5 +44,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/nix-community/harmonia";
     license = licenses.mit;
     maintainers = with maintainers; [ mic92 ];
+    mainProgram = "harmonia";
   };
 }
diff --git a/pkgs/tools/package-management/nix/common.nix b/pkgs/tools/package-management/nix/common.nix
index e79f0f5e3bb..609d0da08af 100644
--- a/pkgs/tools/package-management/nix/common.nix
+++ b/pkgs/tools/package-management/nix/common.nix
@@ -241,6 +241,7 @@ self = stdenv.mkDerivation {
     maintainers = with maintainers; [ eelco lovesegfault artturin ];
     platforms = platforms.unix;
     outputsToInstall = [ "out" ] ++ optional enableDocumentation "man";
+    mainProgram = "nix";
   };
 };
 in self
diff --git a/pkgs/tools/system/auto-cpufreq/default.nix b/pkgs/tools/system/auto-cpufreq/default.nix
index b72ee7a6911..faa280575e1 100644
--- a/pkgs/tools/system/auto-cpufreq/default.nix
+++ b/pkgs/tools/system/auto-cpufreq/default.nix
@@ -43,5 +43,6 @@ python3Packages.buildPythonPackage rec {
     license = licenses.lgpl3Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.Technical27 ];
+    mainProgram = "auto-cpufreq";
   };
 }
diff --git a/pkgs/tools/system/htop/default.nix b/pkgs/tools/system/htop/default.nix
index 215818862cd..c00f2578083 100644
--- a/pkgs/tools/system/htop/default.nix
+++ b/pkgs/tools/system/htop/default.nix
@@ -55,5 +55,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.all;
     maintainers = with maintainers; [ rob relrod SuperSandro2000 ];
     changelog = "https://github.com/htop-dev/htop/blob/${version}/ChangeLog";
+    mainProgram = "htop";
   };
 }
diff --git a/pkgs/tools/system/kanata/default.nix b/pkgs/tools/system/kanata/default.nix
index b1fdb87551d..6e86812ece4 100644
--- a/pkgs/tools/system/kanata/default.nix
+++ b/pkgs/tools/system/kanata/default.nix
@@ -29,5 +29,6 @@ rustPlatform.buildRustPackage rec {
     license = licenses.lgpl3Only;
     maintainers = with maintainers; [ linj ];
     platforms = platforms.linux;
+    mainProgram = "kanata";
   };
 }