diff --git a/pkgs/applications/graphics/ImageMagick/7.0.nix b/pkgs/applications/graphics/ImageMagick/7.0.nix
index b2c665258cd..e0b75e74064 100644
--- a/pkgs/applications/graphics/ImageMagick/7.0.nix
+++ b/pkgs/applications/graphics/ImageMagick/7.0.nix
@@ -78,5 +78,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ erictapen ];
     license = licenses.asl20;
+    mainProgram = "magick";
   };
 }
diff --git a/pkgs/applications/networking/browsers/google-chrome/default.nix b/pkgs/applications/networking/browsers/google-chrome/default.nix
index d903cb3c083..b242e8a7726 100644
--- a/pkgs/applications/networking/browsers/google-chrome/default.nix
+++ b/pkgs/applications/networking/browsers/google-chrome/default.nix
@@ -161,5 +161,8 @@ in stdenv.mkDerivation {
     # will try to merge PRs and respond to issues but I'm not actually using
     # Google Chrome.
     platforms = [ "x86_64-linux" ];
+    mainProgram =
+      if (channel == "dev") then "google-chrome-unstable"
+      else "google-chrome-${channel}";
   };
 }
diff --git a/pkgs/applications/networking/browsers/tor-browser-bundle-bin/default.nix b/pkgs/applications/networking/browsers/tor-browser-bundle-bin/default.nix
index c906a0db4fd..acd10e0ea38 100644
--- a/pkgs/applications/networking/browsers/tor-browser-bundle-bin/default.nix
+++ b/pkgs/applications/networking/browsers/tor-browser-bundle-bin/default.nix
@@ -402,6 +402,7 @@ stdenv.mkDerivation rec {
     changelog = "https://gitweb.torproject.org/builders/tor-browser-build.git/plain/projects/tor-browser/Bundle-Data/Docs/ChangeLog.txt?h=maint-${version}";
     platforms = attrNames srcs;
     maintainers = with maintainers; [ offline matejc thoughtpolice joachifm hax404 cap KarlJoad ];
+    mainProgram = "tor-browser";
     hydraPlatforms = [];
     # MPL2.0+, GPL+, &c.  While it's not entirely clear whether
     # the compound is "libre" in a strict sense (some components place certain
diff --git a/pkgs/development/compilers/adoptopenjdk-bin/jdk-darwin-base.nix b/pkgs/development/compilers/adoptopenjdk-bin/jdk-darwin-base.nix
index 0bcfcafaae1..262e52c2521 100644
--- a/pkgs/development/compilers/adoptopenjdk-bin/jdk-darwin-base.nix
+++ b/pkgs/development/compilers/adoptopenjdk-bin/jdk-darwin-base.nix
@@ -49,6 +49,7 @@ let cpuName = stdenv.hostPlatform.parsed.cpu.name;
     platforms = [ "x86_64-darwin" ]; # some inherit jre.meta.platforms
     maintainers = with lib.maintainers; [ taku0 ];
     inherit knownVulnerabilities;
+    mainProgram = "java";
   };
 
 }; in result
diff --git a/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix b/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix
index 95e72facaee..a433a2f1321 100644
--- a/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix
+++ b/pkgs/development/compilers/adoptopenjdk-bin/jdk-linux-base.nix
@@ -108,6 +108,7 @@ let result = stdenv.mkDerivation rec {
     platforms = lib.mapAttrsToList (arch: _: arch + "-linux") sourcePerArch; # some inherit jre.meta.platforms
     maintainers = with lib.maintainers; [ taku0 ];
     inherit knownVulnerabilities;
+    mainProgram = "java";
   };
 
 }; in result
diff --git a/pkgs/development/compilers/openjdk/11.nix b/pkgs/development/compilers/openjdk/11.nix
index f9dd7205659..15238e63ecb 100644
--- a/pkgs/development/compilers/openjdk/11.nix
+++ b/pkgs/development/compilers/openjdk/11.nix
@@ -142,6 +142,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo asbachb ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/openjdk/12.nix b/pkgs/development/compilers/openjdk/12.nix
index 8c12b5be7f2..33169be5302 100644
--- a/pkgs/development/compilers/openjdk/12.nix
+++ b/pkgs/development/compilers/openjdk/12.nix
@@ -151,6 +151,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/openjdk/13.nix b/pkgs/development/compilers/openjdk/13.nix
index 7e4d9fc7d69..d3db493c5fe 100644
--- a/pkgs/development/compilers/openjdk/13.nix
+++ b/pkgs/development/compilers/openjdk/13.nix
@@ -151,6 +151,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/openjdk/14.nix b/pkgs/development/compilers/openjdk/14.nix
index d98d0e9f8ee..3804999376e 100644
--- a/pkgs/development/compilers/openjdk/14.nix
+++ b/pkgs/development/compilers/openjdk/14.nix
@@ -147,6 +147,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/openjdk/15.nix b/pkgs/development/compilers/openjdk/15.nix
index ddd523ad787..d5cf8fe06cd 100644
--- a/pkgs/development/compilers/openjdk/15.nix
+++ b/pkgs/development/compilers/openjdk/15.nix
@@ -147,6 +147,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/openjdk/16.nix b/pkgs/development/compilers/openjdk/16.nix
index e35369e75c5..9a710ed6fa4 100644
--- a/pkgs/development/compilers/openjdk/16.nix
+++ b/pkgs/development/compilers/openjdk/16.nix
@@ -153,6 +153,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" "armv7l-linux" "armv6l-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/openjdk/8.nix b/pkgs/development/compilers/openjdk/8.nix
index 75dc722b1b2..f10b7310df1 100644
--- a/pkgs/development/compilers/openjdk/8.nix
+++ b/pkgs/development/compilers/openjdk/8.nix
@@ -262,6 +262,7 @@ let
       description = "The open-source Java Development Kit";
       maintainers = with maintainers; [ edwtjo ];
       platforms = [ "i686-linux" "x86_64-linux" "aarch64-linux" ];
+      mainProgram = "java";
     };
 
     passthru = {
diff --git a/pkgs/development/compilers/oraclejdk/jdk-linux-base.nix b/pkgs/development/compilers/oraclejdk/jdk-linux-base.nix
index 41f4befe469..2cb8a459e64 100644
--- a/pkgs/development/compilers/oraclejdk/jdk-linux-base.nix
+++ b/pkgs/development/compilers/oraclejdk/jdk-linux-base.nix
@@ -184,6 +184,7 @@ let result = stdenv.mkDerivation rec {
   meta = with lib; {
     license = licenses.unfree;
     platforms = [ "i686-linux" "x86_64-linux" "armv7l-linux" "aarch64-linux" ]; # some inherit jre.meta.platforms
+    mainProgram = "java";
   };
 
 }; in result
diff --git a/pkgs/development/compilers/zulu/8.nix b/pkgs/development/compilers/zulu/8.nix
index dd1660d9fec..591f10b3be9 100644
--- a/pkgs/development/compilers/zulu/8.nix
+++ b/pkgs/development/compilers/zulu/8.nix
@@ -105,5 +105,6 @@ in stdenv.mkDerivation {
     '';
     maintainers = with maintainers; [ fpletz ];
     platforms = [ "x86_64-linux" "x86_64-darwin" ];
+    mainProgram = "java";
   };
 }
diff --git a/pkgs/development/compilers/zulu/default.nix b/pkgs/development/compilers/zulu/default.nix
index c7b01877ad5..cd118187748 100644
--- a/pkgs/development/compilers/zulu/default.nix
+++ b/pkgs/development/compilers/zulu/default.nix
@@ -108,5 +108,6 @@ in stdenv.mkDerivation {
     '';
     maintainers = with maintainers; [ fpletz ];
     platforms = [ "x86_64-linux" "x86_64-darwin" ];
+    mainProgram = "java";
   };
 }
diff --git a/pkgs/development/python-modules/adb-enhanced/default.nix b/pkgs/development/python-modules/adb-enhanced/default.nix
index d782de26ab7..62922efa530 100644
--- a/pkgs/development/python-modules/adb-enhanced/default.nix
+++ b/pkgs/development/python-modules/adb-enhanced/default.nix
@@ -30,5 +30,6 @@ buildPythonPackage rec {
     homepage = "https://github.com/ashishb/adb-enhanced";
     license = licenses.asl20;
     maintainers = with maintainers; [ vtuan10 ];
+    mainProgram = "adbe";
   };
 }
diff --git a/pkgs/misc/emulators/pcsx2/default.nix b/pkgs/misc/emulators/pcsx2/default.nix
index 52d1010b5a4..476ea7122cb 100644
--- a/pkgs/misc/emulators/pcsx2/default.nix
+++ b/pkgs/misc/emulators/pcsx2/default.nix
@@ -102,6 +102,7 @@ stdenv.mkDerivation {
     '';
     homepage = "https://pcsx2.net";
     maintainers = with maintainers; [ hrdinka govanify ];
+    mainProgram = "PCSX2";
 
     # PCSX2's source code is released under LGPLv3+. It However ships
     # additional data files and code that are licensed differently.
diff --git a/pkgs/misc/emulators/wine/base.nix b/pkgs/misc/emulators/wine/base.nix
index 6d7c2543d80..8553ab83645 100644
--- a/pkgs/misc/emulators/wine/base.nix
+++ b/pkgs/misc/emulators/wine/base.nix
@@ -151,5 +151,6 @@ stdenv.mkDerivation ((lib.optionalAttrs (buildScript != null) {
     license = with lib.licenses; [ lgpl21Plus ];
     description = "An Open Source implementation of the Windows API on top of X, OpenGL, and Unix";
     maintainers = with lib.maintainers; [ avnik raskin bendlas ];
+    mainProgram = "wine";
   };
 })
diff --git a/pkgs/os-specific/linux/lm-sensors/default.nix b/pkgs/os-specific/linux/lm-sensors/default.nix
index 34ad80a6c00..21324a5d6ce 100644
--- a/pkgs/os-specific/linux/lm-sensors/default.nix
+++ b/pkgs/os-specific/linux/lm-sensors/default.nix
@@ -35,5 +35,6 @@ stdenv.mkDerivation rec {
     license = with licenses; [ lgpl21Plus gpl2Plus ];
     maintainers = with maintainers; [ pengmeiyu ];
     platforms = platforms.linux;
+    mainProgram = "sensors";
   };
 }
diff --git a/pkgs/tools/X11/libstrangle/default.nix b/pkgs/tools/X11/libstrangle/default.nix
index d8c220d0fd7..2d7f6b456c4 100644
--- a/pkgs/tools/X11/libstrangle/default.nix
+++ b/pkgs/tools/X11/libstrangle/default.nix
@@ -28,5 +28,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ aske ];
+    mainProgram = "strangle";
   };
 }
diff --git a/pkgs/tools/archivers/p7zip/default.nix b/pkgs/tools/archivers/p7zip/default.nix
index 8a01353b01b..8ba87da6b6a 100644
--- a/pkgs/tools/archivers/p7zip/default.nix
+++ b/pkgs/tools/archivers/p7zip/default.nix
@@ -48,6 +48,7 @@ stdenv.mkDerivation rec {
     description = "A new p7zip fork with additional codecs and improvements (forked from https://sourceforge.net/projects/p7zip/)";
     platforms = lib.platforms.unix;
     maintainers = [ lib.maintainers.raskin ];
+    mainProgram = "7z";
     # RAR code is under non-free UnRAR license, but we remove it
     license = if enableUnfree then lib.licenses.unfree else lib.licenses.lgpl2Plus;
   };
diff --git a/pkgs/tools/misc/trash-cli/default.nix b/pkgs/tools/misc/trash-cli/default.nix
index e8cf63fbccf..dcb9e056e9b 100644
--- a/pkgs/tools/misc/trash-cli/default.nix
+++ b/pkgs/tools/misc/trash-cli/default.nix
@@ -30,5 +30,6 @@ python3Packages.buildPythonApplication rec {
     maintainers = [ maintainers.rycee ];
     platforms = platforms.unix;
     license = licenses.gpl2;
+    mainProgram = "trash";
   };
 }