feat(build): enable distributed builds and caching setup

- Added Nix distributed build configuration for multiple machines.
- Introduced caching setup with substituters and sandbox paths.
- Enabled optional build configurations with ccache support.

modules/nixos/services/base/default.nix

@@ -1,8 +1,7 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
+{ config
+, lib
+, pkgs
+, ...
 }:
 with lib;
 with lib.metacfg;