working on harmonia

tests/module-allow-rebuild-in-vm.nix

@@ -0,0 +1,31 @@
+{ name, config, ... }:
+
+{
+  system.includeBuildDependencies = true;
+  system.switch.enable = true;
+
+  documentation.enable = false;
+
+  virtualisation = {
+    additionalPaths = [ config.system.build.toplevel ];
+    writableStore = true;
+    mountHostNixStore = true;
+    installBootLoader = true;
+
+    # With how much memory Nix eval uses, this is essentially required.
+    memorySize = 4096;
+    cores = 4;
+
+  };
+
+  boot.loader.grub = {
+    enable = true;
+    device = "/dev/vda";
+    forceInstall = true;
+  };
+
+  # Just making something in this strict in `name`,
+  # which is only present as an argument for nodes and I don't want to
+  # confuse that with the test modules.
+  warnings = builtins.seq name [ ];
+}