kitty-config-wrapped

configuration.nix

{ config, pkgs, ... }:

let

  my-kitty = { config }: pkgs.kitty.overrideAttrs(oldAttrs: {
    installPhase = let
      configFile = pkgs.writeText "kitty.conf" config;
    in oldAttrs.installPhase + ''
      # undo original wrapping
      rm $out/bin/kitty
      mv $out/bin/.kitty-wrapped $out/bin/kitty
      # redo wrapping but add --config
      wrapProgram "$out/bin/kitty" \
        --prefix PATH : "$out/bin:${pkgs.stdenv.lib.makeBinPath (with pkgs; [ imagemagick xsel ])}" \
        --add-flags "--config ${configFile}"
    '';
  });

in {

  environment.systemPackages = [
    (my-kitty {
      config = "FOOCONFIG";
    })
  
  ];

}