Base of Nix Configuration

modules/apps/submodules/nh.nix

@@ -0,0 +1,19 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.within.shell.nh;
+in
+{
+  options.within.shell.nh = {
+    enable = mkEnableOption "System nh service";
+  };
+  config = mkIf cfg.enable {
+
+    programs.nh = {
+      enable = true;
+      clean.enable = true;
+      clean.extraArgs = "--keep-since 2d --keep 3";
+    };
+
+  };
+}