move ensureZfsMounts

tests/minecraft.nix

@@ -10,7 +10,10 @@ let
   testPkgs = import inputs.nixpkgs {
     system = pkgs.system;
     config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [ "minecraft-server" ];
-    overlays = [ inputs.nix-minecraft.overlay ];
+    overlays = [
+      inputs.nix-minecraft.overlay
+      (import ../overlays.nix)
+    ];
   };
 
   # Create a wrapper module that imports the actual minecraft service

tests/zfs.nix

@@ -2,9 +2,17 @@
   config,
   lib,
   pkgs,
+  inputs,
   ...
 }:
-pkgs.testers.runNixOSTest {
+let
+  # Create pkgs with ensureZfsMounts overlay
+  testPkgs = import inputs.nixpkgs {
+    system = pkgs.system;
+    overlays = [ (import ../overlays.nix) ];
+  };
+in
+testPkgs.testers.runNixOSTest {
   name = "zfs folder dependency and mounting test";
 
   nodes.machine =
@@ -35,7 +43,7 @@ pkgs.testers.runNixOSTest {
 
       environment.systemPackages = [
         pkgs.parted
-        lib.ensureZfsMounts
+        pkgs.ensureZfsMounts
       ];
 
       systemd.services.foobar = {