Added cashew, did some backplane yak shaving

initialize.nix

@@ -1,5 +1,6 @@
 { lib, pkgs, hostname, site, domain, profile, build-timestamp, ... }:
 
+with lib;
 let
   # Get info on this host so we know what to load
   config-dir = ./. + "/config";
@@ -8,13 +9,13 @@ in {
   imports = [
     ./lib
     ./config
-
+  ] ++ (filter pathExists [
     (config-dir + /hardware/${hostname}.nix)
     (config-dir + /host-config/${hostname}.nix)
     (config-dir + /profile-config/${profile}.nix)
     (config-dir + /domain-config/${domain}.nix)
     (config-dir + /site-config/${site}.nix)
-  ];
+  ]);
 
   config = {
     instance = {