{ config, pkgs, lib, ... }: { options.git = { enable = lib.mkEnableOption "Enables git"; username = lib.mkOption { default = config.home.username; }; email = lib.mkOption { default = "git@" + config.home.username + ".com"; }; }; config = lib.mkIf config.git.enable { programs.git = { enable = true; userName = config.git.username; userEmail = config.git.email; }; }; }