{
  lib,
  config,
  system,
  pkgs,
  ...
}: let
  inherit (lib.snowfall.system) is-darwin;

  cfg = config.marleyos.programs.wezterm;
  inherit (config.marleyos.theme) colors;

  isGenericLinux = config.targets.genericLinux.enable;
  isNotNixOS = isGenericLinux || (is-darwin system);
in {
  options.marleyos.programs.wezterm.enable = lib.mkEnableOption "wezterm";

  config = lib.mkIf cfg.enable {
    programs.wezterm = {
      enable = true;

      # Generic linux: NixGL makes Wezterm shit the bed for some reason.
      # macOS: Prefer brew cask so a proper Applications shortcut is made.
      package =
        if isNotNixOS
        then pkgs.emptyDirectory
        else pkgs.wezterm;

      # TODO: create `local config` & return it seperately, so other modules can
      # insert config in the middle
      extraConfig = let
        inherit (config.marleyos.theme) fonts;
      in
        # lua
        ''
          local config = wezterm.config_builder()

          -- Fix color blocks instead of text issue.
          config.front_end = "WebGpu"

          config.enable_tab_bar = false

          config.color_scheme = "${colors.base}"

          config.font = wezterm.font_with_fallback({
            {
              family = "${fonts.monospace.name}",
              harfbuzz_features = {
                ${lib.concatStrings fonts.monospace.ligatures}
              }
            },
            { family = "FairiesevkaTerm Nerd Font Mono" },
            {
              family = "FiraCode Nerd Font",
              harfbuzz_features = {
                "cv02",
                "cv06",
                "ss01",
                "cv14",
                "onum",
                "ss04",
                "cv18",
                "cv31",
                "cv30",
                "cv25",
                "cv26",
                "cv32",
                "ss06",
                "ss07",
              },
            },
            { family = "${fonts.emoji.name}" },
          })

          config.font_size = ${
            if (is-darwin system)
            then "14.0"
            else "11.0"
          }

          return config
        '';
    };
  };
}