diff --git a/lib/meta.nix b/lib/meta.nix
index 5fd55c4e90d69..d32a37fe61d72 100644
--- a/lib/meta.nix
+++ b/lib/meta.nix
@@ -144,5 +144,9 @@ rec {
        => "/nix/store/am9ml4f4ywvivxnkiaqwr0hyxka1xjsf-mustache-go-1.3.0/bin/mustache"
   */
   getExe = x:
-    "${lib.getBin x}/bin/${x.meta.mainProgram or (lib.getName x)}";
+    "${lib.getBin x}/bin/${x.meta.mainProgram or (
+      # This could be turned into an error when 23.05 is at end of life
+      lib.warn "getExe: Package ${lib.strings.escapeNixIdentifier x.meta.name or x.pname or x.name} does not have the meta.mainProgram attribute. We'll assume that the main program has the same name for now, but this behavior is deprecated, because it leads to surprising errors when the assumption does not hold. If the package has a main program, please set `meta.mainProgram` in its definition to make this warning go away. Otherwise, if the package does not have a main program, or if you don't control its definition, specify the full path to the program, such as \"\${lib.getBin foo}/bin/bar\"."
+      lib.getName x
+    )}";
 }
diff --git a/nixos/modules/programs/oddjobd.nix b/nixos/modules/programs/oddjobd.nix
index a37df0482c9aa..b0920d007c9eb 100644
--- a/nixos/modules/programs/oddjobd.nix
+++ b/nixos/modules/programs/oddjobd.nix
@@ -10,6 +10,11 @@ in
   };
 
   config = lib.mkIf cfg.enable {
+    assertions = [
+      { assertion = false;
+        message = "The oddjob service was found to be broken without NixOS test or maintainer. Please take ownership of this service.";
+      }
+    ];
     systemd.packages = [ cfg.package ];
 
     systemd.services.oddjobd = {
@@ -21,7 +26,7 @@ in
       serviceConfig = {
         Type = "dbus";
         BusName = "org.freedesktop.oddjob";
-        ExecStart = "${lib.getExe cfg.package}/bin/oddjobd";
+        ExecStart = "${lib.getBin cfg.package}/bin/oddjobd";
       };
     };
   };
diff --git a/pkgs/applications/audio/espeak-ng/default.nix b/pkgs/applications/audio/espeak-ng/default.nix
index d53c0ac1caff4..5e62399c8a483 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 a520ad88d6e11..6cd336821cca1 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 988ca79647946..cc4d7265ce28e 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 94c30fe0a3213..37fcc0eb48e1b 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 614a9e844cc02..aa7f17b20c280 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 7a998fc4875cd..a7f3c682381f3 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 7869ed9a1f75d..bbe36cb0d6615 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 236ceaa0a78db..ce94764ed9b1b 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 adb46e2bab7ce..eff1458e07e34 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 bb696b4087fcd..89cae801ec29c 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 bf134e2cb07cd..e3b52c411d6b8 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 6c56c75418f92..c94263f816125 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 7fc47fbcdf94d..c43f10f0a2ec8 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 44b7659d30c7c..97508ed418c1a 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 6d543e7d8407b..96d6430c14e23 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 ff103373a10f6..f84cca760f860 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 cc7406b114632..c88c7d42b128b 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 d56d42abf2ea4..860f449fd8b3f 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 2865711d507c3..aa835aad1c597 100644
--- a/pkgs/development/tools/continuous-integration/woodpecker/agent.nix
+++ b/pkgs/development/tools/continuous-integration/woodpecker/agent.nix
@@ -13,5 +13,6 @@ 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 d97412649b5db..5ee48ae926f55 100644
--- a/pkgs/development/tools/continuous-integration/woodpecker/server.nix
+++ b/pkgs/development/tools/continuous-integration/woodpecker/server.nix
@@ -23,5 +23,6 @@ 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 6179116d0adb1..1e7c0b3ff1e4f 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 ddf5b301d3458..685426122924d 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 6f6a937efbed3..ef71dc143f192 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 b9e32372922f5..6970d2a94ec9a 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 a2c58010eff7c..50c064cadfd0e 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 a93eee5cb1d19..b91460160ce8c 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 d8201fabb2f6f..08f067ecbd768 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 2bdca0805a229..0a91fd5859065 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 54aca01c1a40d..4bc276b6c389a 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 1f9b68060321b..6f145137567a5 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 08cd511f18274..db6ea4bbea009 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/${src.rev}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ emilylange ];
+    mainProgram = "acme-dns";
   };
 }
diff --git a/pkgs/servers/ldap/lldap/default.nix b/pkgs/servers/ldap/lldap/default.nix
index 1948ca015dda8..3c83fe037a0d7 100644
--- a/pkgs/servers/ldap/lldap/default.nix
+++ b/pkgs/servers/ldap/lldap/default.nix
@@ -110,5 +110,6 @@ in rustPlatform.buildRustPackage (commonDerivationAttrs // {
     license = licenses.gpl3Only;
     platforms = platforms.linux;
     maintainers = with maintainers; [ emilylange bendlas ];
+    mainProgram = "lldap";
   };
 })
diff --git a/pkgs/servers/monitoring/grafana-agent/default.nix b/pkgs/servers/monitoring/grafana-agent/default.nix
index 3859c2df59652..e07621e8213d0 100644
--- a/pkgs/servers/monitoring/grafana-agent/default.nix
+++ b/pkgs/servers/monitoring/grafana-agent/default.nix
@@ -73,5 +73,6 @@ buildGoModule rec {
     homepage = "https://grafana.com/products/cloud";
     changelog = "https://github.com/grafana/agent/blob/${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 8ce4b7676e447..43f9d7a7fe739 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 f1079a03fcece..d3420f90db543 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 81f07c2131919..c7d6e7b9567c3 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 9010d63d5c67e..aebfc73c5c116 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 8a0e43b600852..ad7fc761d8439 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 1ba4c0aee9eb2..b96ccfd6fe7a0 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 88a07cd07af9e..179e719528a4b 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 45f5ed90577f3..7fad2c381c3fd 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 00b9e990a8d52..16fec1445a57d 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 b74bd1c9e3cdb..fd3a94298c62e 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 7b58b9c2d93cc..fc87723208ede 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 3fa7a9a8076b3..e274222b27b78 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 244eab7809b90..c7275db6c0a6a 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 6ddf423657fad..7eba0e1f21505 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 40949e6725ae6..f7b71b2fb4ca7 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 823987888a316..a9843e2efa17b 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 5b815261fbc47..cee9301d5943d 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 e79f0f5e3bbe9..609d0da08afad 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 b72ee7a6911fe..faa280575e1ea 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 215818862cdb5..c00f257808397 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 5a3450df08660..82303c2765442 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";
   };
 }