treewide: add meta.mainProgram

pkgs/applications/display-managers/greetd/gtkgreet.nix

···
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ luc65r ];
     platforms = platforms.linux;
+    mainProgram = "gtkgreet";
   };
 }

pkgs/applications/terminal-emulators/foot/default.nix

···
     # TERMINFO to a store path, but allows installing foot.terminfo
     # on remote systems for proper foot terminfo support.
     priority = (ncurses.meta.priority or 5) + 3 + 1;
+    mainProgram = "foot";
   };
 }

pkgs/applications/video/kooha/default.nix

···
     license = licenses.gpl3Only;
     platforms = platforms.linux;
     maintainers = with maintainers; [ austinbutler ];
+    mainProgram = "kooha";
   };
 }

pkgs/applications/window-managers/hyprwm/hyprpaper/default.nix

···
     maintainers = with maintainers; [ wozeparrot fufexan ];
     inherit (wayland.meta) platforms;
     broken = stdenv.isDarwin;
+    mainProgram = "hyprpaper";
   };
 })

pkgs/applications/window-managers/sway/default.nix

···
     license     = licenses.mit;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ primeos synthetica ];
+    mainProgram = "sway";
   };
 })

pkgs/development/node-packages/main-programs.nix

···
   s3http = "s3http.js";
   svelte-language-server = "svelteserver";
   teck-programmer = "teck-firmware-upgrade";
+  typescript-language-server = "typescript-language-server";
   uglify-js = "uglifyjs";
   undollar = "$";
   vsc-leetcode-cli = "leetcode";

pkgs/development/tools/jaq/default.nix

···
     changelog = "https://github.com/01mf02/jaq/releases/tag/${src.rev}";
     license = licenses.mit;
     maintainers = with maintainers; [ figsoda siraben ];
+    mainProgram = "jaq";
   };
 }

pkgs/shells/fish/default.nix

···
       license = licenses.gpl2;
       platforms = platforms.unix;
       maintainers = with maintainers; [ cole-h winter srapenne ];
+      mainProgram = "fish";
     };
 
     passthru = {

pkgs/tools/audio/playerctl/default.nix

···
     platforms = platforms.unix;
     maintainers = with maintainers; [ puffnfresh ];
     broken = stdenv.hostPlatform.isDarwin;
+    mainProgram = "playerctl";
   };
 }

pkgs/tools/misc/starship/default.nix

···
     homepage = "https://starship.rs";
     license = licenses.isc;
     maintainers = with maintainers; [ bbigras danth davidtwco Br1ght0ne Frostman marsam ];
+    mainProgram = "starship";
   };
 }

pkgs/tools/networking/curl/default.nix

···
     # Fails to link against static brotli or gss
     broken = stdenv.hostPlatform.isStatic && (brotliSupport || gssSupport);
     pkgConfigModules = [ "libcurl" ];
+    mainProgram = "curl";
   };
 })

pkgs/tools/networking/socat/default.nix

···
     platforms = platforms.unix;
     license = with licenses; [ gpl2Only ];
     maintainers = with maintainers; [ eelco ];
+    mainProgram = "socat";
   };
 }

pkgs/tools/security/yubikey-touch-detector/default.nix

···
     maintainers = with maintainers; [ sumnerevans ];
     license = with licenses; [ bsd2 isc ];
     platforms = platforms.linux;
+    mainProgram = "yubikey-touch-detector";
   };
 }

pkgs/tools/wayland/wtype/default.nix

···
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ justinlovinger ];
+    mainProgram = "wtype";
   };
 }