modules/default.nix

@@ -1,4 +1,8 @@
-{disko, ...}: {
+{
+  disko,
+  home-manager,
+  ...
+}: {
   imports = [
     ./riscv.nix
     ./containers/autoconfig.nix
@@ -7,5 +11,6 @@
     ./secrets/sops.nix
     disko.nixosModules.default
     ./hydra/build-server.nix
+    "${home-manager}/nixos"
   ];
 }

modules/environment/user-impermanence.nix

@@ -2,6 +2,7 @@
   config,
   lib,
   pkgs,
+  inTester,
   ...
 }:
 with lib; {
@@ -13,7 +14,7 @@ with lib; {
     };
   };
 
-  config = mkIf config.environment.impermanence.enable {
+  config = mkIf (config.environment.impermanence.enable && config.environment.impermanence.users != []) {
     home-manager.users = listToAttrs (map (name: {
         inherit name;
         value.home.persistence.default = {

users/home-manager.nix

@@ -1,14 +1,10 @@
 {
-  home-manager,
   impermanence,
   inputs,
   inputs',
   config,
   ...
 }: {
-  imports = [
-    "${home-manager}/nixos"
-  ];
   home-manager = {
     useUserPackages = true;
     useGlobalPkgs = true;