Large refactor

modules/nixos/users.nix

@@ -0,0 +1,18 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.sydnix.users;
+in {
+  options = {
+    sydnix.users = {
+      users = mkOption {
+        description =
+          "List of usernames whose home profiles should be imported.";
+        type = with types; listOf str;
+        default = [];
+      };
+    };
+  };
+}