final: prev: {
  arcanPackages = prev.arcanPackages.overrideScope' (finalScope: prevScope: {
    arcan = prevScope.arcan.overrideAttrs (finalAttrs: prevAttrs: {
      version = "9f3debd036d2a2376dc6b7bade42988e5ca6d379";
      nativeBuildInputs = prevAttrs.nativeBuildInputs ++ [
        final.git
      ];
      src = final.fetchFromGitHub {
        owner = "letoram";
        repo = "arcan";
        rev = "9f3debd036d2a2376dc6b7bade42988e5ca6d379";
        hash = "sha256-mdlm8ZCx49gk1SRMWKWubh/GYACOcV2EOsmZfii4UM8=";
      };
      patches = [];
    });
  });
}

    graphical.arcan

                graphical.arcan