bicep: add git-mirroring service

modules/gickup/set-description.nix

@@ -0,0 +1,9 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.gickup;
+in
+{
+  config = lib.mkIf cfg.enable {
+    # TODO: create .git/description files for each repo where cfg.instances.<instance>.description is set
+  };
+}