{
  stdenv,
  iosevka,
  nerd-font-patcher,
}: let
  customBuildPlan = import ./custom-build-plan.nix;
in {
  iosevka-custom-aile = iosevka.override {
    set = "aile";
    privateBuildPlan = {
      inherit (customBuildPlan) noCvSs exportGlyphNames variants weights;
      family = "Iosevka Custom Aile";
      spacing = "quasi-proportional";
      serifs = "sans";
    };
  };
  iosevka-custom-nerdfont = let
    monospace = iosevka.override {
      set = "custom";
      privateBuildPlan = {
        inherit (customBuildPlan) noCvSs exportGlyphNames variants weights;
        family = "Iosevka Custom";
        spacing = "normal";
        serifs = "sans";
      };
    };
  in
    stdenv.mkDerivation {
      name = "${monospace.name}-nerd-font-patched";
      src = monospace;
      nativeBuildInputs = [nerd-font-patcher];
      buildPhase = ''
        find \( -name \*.ttf -o -name \*.otf \) -execdir nerd-font-patcher -c {} \;
      '';
      installPhase = "cp -a . $out";
    };
}