diff --git a/nix-system-configs/modules/system/blank_system_USE_THIS_AS_COPY.nix b/nix-system-configs/modules/system/blank_system_USE_THIS_AS_COPY.nix
index 6a5afa3..c4c9bec 100644
--- a/nix-system-configs/modules/system/blank_system_USE_THIS_AS_COPY.nix
+++ b/nix-system-configs/modules/system/blank_system_USE_THIS_AS_COPY.nix
@@ -4,7 +4,7 @@
   lib,
   ...
 }: let
-  choose = paths: builtins.head (builtins.filter (p: builtins.pathExists p) paths);
+  choose = paths: lib.findFirst builtins.pathExists null paths;
 in {
   options.local = {
     hostname = lib.mkOption {
@@ -29,7 +29,7 @@ in {
     };
   };
 
-  imports = [
+  imports = lib.filter (x: x != null) [
     (choose [ ./modules/local/hostname_username.nix ../local/hostname_username.nix ])
     (choose [ ./modules/local/networking_local.nix ../local/networking_local.nix ])
     (choose [ ./modules/bootloader/seabios-assigned-iso-at-birth.nix ../bootloader/seabios-assigned-iso-at-birth.nix ])