feat: Add basic configuration for Git{hub,lab} CLIs

modules/home/glab.nix

@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let cfg = config.programs.glab;
+in {
+  options = {
+    programs.glab = {
+      enable = mkEnableOption "the GitLab CLI tool";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    # TODO: Everything else. }:)
+    home.packages = [ pkgs.glab ];
+  };
+}