refactor(flake): split host guest and module assembly

flake/host.nix

@@ -0,0 +1,49 @@
+{
+  inputs,
+  lib,
+  specialArgs,
+  repositoryModules,
+
+  guestModules,
+  # TODO refactor registry
+  registryAssembly,
+}:
+let
+  mkHost =
+    {
+      root,
+      name,
+    }:
+    lib.nixosSystem {
+      inherit specialArgs;
+      modules = [
+        inputs.chaotic.nixosModules.default
+        inputs.disko.nixosModules.disko
+        inputs.sops-nix.nixosModules.sops
+        inputs.stylix.nixosModules.stylix
+
+        repositoryModules
+        guestModules
+
+        # TODO: refactor
+        registryAssembly.module (root + "/${name}")
+
+        {
+          networking.hostName = name;
+          modules.host.enable = true;
+        }
+      ];
+    };
+in
+{
+  mkHosts =
+    { root }:
+    let
+      directories = lib.filterAttrs (_name: type: type == "directory") (builtins.readDir root);
+      names = lib.attrNames directories;
+    in
+    lib.genAttrs names (
+      name:
+      mkHost { inherit root name; }
+    );
+}