add umu-launcher

flake.nix

@@ -70,6 +70,10 @@
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    umu = {
+      url = "git+https://github.com/Open-Wine-Components/umu-launcher/?dir=packaging\/nix&submodules=1";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
 
     chaotic.url = "github:chaotic-cx/nyx/nyxpkgs-unstable";
   };

profiles/applications/games/wine-games.nix

@@ -4,10 +4,12 @@
     pkgs.heroic
     pkgs.osu-lazer-bin
     pkgs.realrtcw
+    pkgs.umu-launcher
   ];
   persist.state.homeDirectories = [
     ".config/heroic"
     ".local/share/bottles"
     ".local/share/osu"
+    ".local/share/umu"
   ];
 }

profiles/overlay.nix

@@ -35,6 +35,7 @@ with lib; {
         steam = prev.steam.override {
           extraPkgs = pkgs: with pkgs; [ mono libkrb5 keyutils ];
         };
+        umu-launcher = inputs.umu.packages.${system}.umu;
         wine = prev.wineWow64Packages.stagingFull;
         intel-vaapi-driver = prev.intel-vaapi-driver.override { enableHybridCodec = true; };