Fix missing meta.mainPrograms

pkgs/asciiportal/generic.nix

@@ -80,6 +80,7 @@ in stdenv.mkDerivation rec {
             # A couple of the level packs use this:
             cc-by-sa-20
         ];
+        mainProgram = "asciiportal";
         maintainers = [maintainers.Rhys-T];
     };
 }

pkgs/konify/default.nix

@@ -19,6 +19,7 @@
         description = "Script to generate semi-random desktop backgrounds";
         homepage = "https://xyne.dev/scripts/graphics/konify/";
         license = lib.licenses.gpl2Plus;
+        mainProgram = "konify";
         maintainers = [maintainers.Rhys-T];
     };
 }

pkgs/pacifi3d/default.nix

@@ -91,6 +91,7 @@ in stdenv.mkDerivation rec {
         # No license explicitly specified. Credits seem to indicate some emulation code came from
         # MAME, which would have been under its old viral non-commercial license at the time.
         license = lib.licenses.unfree;
+        mainProgram = pname;
         maintainers = [maintainers.Rhys-T];
     };
     passthru = {

pkgs/powder/default.nix

@@ -120,6 +120,7 @@
 
             # There's also some Apache-2.0 code in there, but only in the Android port.
         ];
+        mainProgram = "powder";
         maintainers = [maintainers'.Rhys-T];
     };
 }

pkgs/xorcurses/generic.nix

@@ -21,6 +21,7 @@
         '';
         inherit homepage;
         license = lib.licenses.gpl3Only;
+        mainProgram = "xorcurses";
         maintainers = [maintainers.Rhys-T];
     };
 }