Added old pi files

old-pi-nixos/chrony.nix

@@ -0,0 +1,9 @@
+{config, lib, pkgs, modulesPath, ...}:
+
+{
+  services.chrony = {
+    enable = true;
+    enableNTS = true;
+    servers = ["nts.teambelgium.net" "ptbtime1.ptb.de" "paris.time.system76.com"];
+  };
+}