{
  config,
  inputs,
  lib,
  osConfig ? null,
  pkgs,
  ...
}:
let
  hm = inputs.self.lib.hmModule {
    inherit
      config
      inputs
      osConfig
      ;
    optionPath = [
      "dev"
      "ruby"
    ];
  };
  cfg = config.my.dev.ruby;
  feature = import ./common.nix { inherit pkgs; };
in
{
  options.my.dev.ruby.enable = lib.mkEnableOption "Install Ruby tooling globally";
  config = lib.mkMerge [
    {
      my.dev.ruby.enable = lib.mkDefault hm.enabledByDefault;
    }
    (lib.mkIf cfg.enable {
      home = {
        inherit (feature) packages;
        sessionVariables = {
          GEM_HOME = "${config.xdg.dataHome}/ruby/gems";
          GEM_PATH = "${config.xdg.dataHome}/ruby/gems";
          GEM_SPEC_CACHE = "${config.xdg.dataHome}/ruby/specs";
        };
      };
    })
  ];
}