_final: prev: {
  prismlauncher = prev.prismlauncher.overrideAttrs (old: {
    # Offline mode for Prism Launcher
    # .patch file from some Misterio77's nix-config repo
    patches =
      (old.patches or [])
      ++ [
        (prev.fetchpatch {
          url = "https://raw.githubusercontent.com/Misterio77/nix-config/ac1d7bbcafb6be75e94448c7ae7a94d460e3129d/overlays/offline-mode-prism-launcher.diff";
          hash = "sha256-vMcAvhD0Ms4Tvwpzs/YfORc8ki7MNMurdJJ/yswfxFM=";
        })
      ];
  });
}