Merge pull request #247832 from lovesegfault/misc-mainprogram

pkgs/applications/audio/ponymix/default.nix

@@ -19,6 +19,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "CLI PulseAudio Volume Control";
     homepage = "https://github.com/falconindy/ponymix";
+    mainProgram = "ponymix";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ ericsagnes ];

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

@@ -31,6 +31,7 @@ stdenv.mkDerivation rec {
       you need to set "security.pam.services.swaylock = {};" manually.
     '';
     inherit (src.meta) homepage;
+    mainProgram = "swaylock";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ primeos ];

pkgs/os-specific/linux/brillo/default.nix

@@ -27,6 +27,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Backlight and Keyboard LED control tool";
     homepage = "https://gitlab.com/cameronnemo/brillo";
+    mainProgram = "brillo";
     license = [ licenses.gpl3 licenses.bsd0 ];
     platforms = platforms.linux;
     maintainers = [ maintainers.alexarice ];