resolve regressions from recent qemu files (#432)

- move import to match module classes
- manually import sources to resolve infinite recursion

closes #431.

Reviewed-on: Fediversity/Fediversity#432
Co-authored-by: Kiara Grouwstra <kiara@procolix.eu>
Co-committed-by: Kiara Grouwstra <kiara@procolix.eu>

infra/common/proxmox-qemu-vm.nix

@@ -1,9 +1,21 @@
-{ modulesPath, ... }:
-
+let
+  # pulling this in manually over from module args resolves an infinite recursion.
+  # FIXME: instead untangle `//infra/flake-part.nix` and make it stop passing wild functions.
+  # move moving towards a portable-services-like pattern where some things are submodules.
+  # Right now those wild functions are for parameterising a bunch of things,
+  # and the modular way to do that would be options --
+  # obviously you can't use those for `imports`,
+  # so one way to decouple fixpoints is to isolate them into submodules.
+  # Therefore one approach would be to try to go down the call graph,
+  # and see where what's currently a function could be a `submodule` field of something else.
+  sources = import ../../npins;
+in
 {
   _class = "nixos";
 
-  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];
+  imports = [
+    "${sources.nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
+  ];
 
   boot = {
     initrd = {

infra/flake-part.nix

@@ -33,6 +33,10 @@ let
           ;
       };
 
+      nixos.module.imports = [
+        ./common/proxmox-qemu-vm.nix
+      ];
+
       imports =
         [
           ./common/resource.nix
@@ -40,7 +44,6 @@ let
         ++ (
           if isTestVm then
             [
-              ./common/proxmox-qemu-vm.nix
               ../machines/operator/${vmName}
               {
                 nixos.module.users.users.root.openssh.authorizedKeys.keys = [

machines/dev/forgejo-ci/default.nix

@@ -48,7 +48,7 @@ in
       };
 
       ## NOTE: This is a physical machine, so is not covered by disko
-      fileSystems."/" = {
+      fileSystems."/" = lib.mkForce {
         device = "rpool/root";
         fsType = "zfs";
       };
@@ -58,7 +58,7 @@ in
         fsType = "zfs";
       };
 
-      fileSystems."/boot" = {
+      fileSystems."/boot" = lib.mkForce {
         device = "/dev/disk/by-uuid/50B2-DD3F";
         fsType = "vfat";
         options = [