packages: add osu-lazer

overlays/osu-lazer.nix

@@ -0,0 +1,28 @@
+self: super:
+let
+  version = "2021.927.0";
+in {
+  osu-lazer = super.osu-lazer.overrideAttrs(old: {
+    inherit version;
+
+    src = super.fetchFromGitHub {
+      owner = "ppy";
+      repo = "osu";
+      rev = version;
+      sha256 = "+RsvOd1BXBGoeNEyRt90aYicPBspe/Ki0XWw/Cbghoo=";
+    };
+
+    buildPhase = super.lib.replaceStrings [ old.version ] [ version ] old.buildPhase;
+
+    nugetDeps = super.linkFarmFromDrvs "${old.pname}-nuget-deps" (import ./patches/deps.nix {
+      fetchNuGet = { name, version, sha256 }: super.fetchurl {
+        name = "nuget-${name}-${version}.nupkg";
+        url = "https://www.nuget.org/api/v2/package/${name}/${version}";
+        inherit sha256;
+      };
+    });
+
+    patches = [ ./patches/bypass-tamper-detection.patch ];
+    patchFlags = [ "--binary" "-p1" ];
+  });
+}