self: super: { gnomeExtensions = super.gnomeExtensions // { paperwm = super.gnomeExtensions.paperwm.overrideDerivation (old: { version = "41.0"; src = super.fetchFromGitHub { owner = "PaperWM-community"; repo = "PaperWM"; rev = "b66aaf13e8f4cdf0e2f9078fb3e75703535b822c"; sha256 = "sha256-6AUUu63oWxRw9Wpxe0f7xvt7iilvQfhpAB8SYG4yP8Q="; }; }); }; }