samrewritten: add missing platforms

flake.nix

@@ -40,6 +40,7 @@
             cli = mkApp { program = "${packages.psst}/bin/psst-cli"; };
             gui = mkApp { program = "${packages.psst}/bin/psst-gui"; };
           };
+          samrewritten = mkApp { program = "${packages.samrewritten}/bin/samrewritten"; };
           spotify-ripper = mkApp { program = "${packages.spotify-ripper}/bin/spotify-ripper"; };
         };
       });

pkgs/tools/misc/samrewritten/default.nix

@@ -55,5 +55,6 @@ stdenv.mkDerivation rec {
     description = "Steam Achievement Manager For Linux";
     homepage = "https://github.com/PaulCombal/SamRewritten";
     license = licenses.gpl3;
+    platforms = platforms.linux;
   };
 }