flake-parts/setups: include private modules as part of default shared modules

configs/flake-parts/home-manager.nix

@@ -40,11 +40,9 @@
       plover.systems = [ "x86_64-linux" ];
     };
 
-    # This is to be used by the NixOS `home-manager.sharedModules` anyways.
+    # Pretty much the baseline home-manager configuration for the whole
+    # cluster.
     sharedModules = [
-      # Import our private modules...
-      ../../modules/home-manager/_private
-
       # ...plus a bunch of third-party modules.
       inputs.sops-nix.homeManagerModules.sops
       inputs.nix-index-database.hmModules.nix-index

configs/flake-parts/nixos.nix

@@ -81,10 +81,8 @@
       };
     };
 
+    # Basically the baseline NixOS configuration of the whole cluster.
     sharedModules = [
-      # Import our private modules.
-      ../../modules/nixos/_private
-
       # Only have third-party modules with optional NixOS modules.
       inputs.nix-index-database.nixosModules.nix-index
       inputs.sops-nix.nixosModules.sops

modules/flake-parts/setups/home-manager.nix

@@ -224,7 +224,12 @@ in
 
   config = lib.mkIf (cfg.configs != { }) {
     # Import our own home-manager modules.
-    setups.home-manager.sharedModules = [ homeManagerModules ];
+    setups.home-manager.sharedModules = [
+      homeManagerModules
+
+      # Import our private modules...
+      ../../home-manager/_private
+    ];
 
     flake =
       let

modules/flake-parts/setups/nixos.nix

@@ -508,6 +508,9 @@ in
       # Import our own public NixOS modules.
       nixosModules
 
+      # Import our private modules.
+      ../../nixos/_private
+
       # Set the home-manager-related settings.
       ({ lib, ... }: {
         home-manager.sharedModules = partsConfig.setups.home-manager.sharedModules;