update

tests/test_core_config.py

@@ -12,6 +12,7 @@ def test_load_config_missing_path(tmp_path):
     assert isinstance(cfg, AppConfig)
     assert cfg.dotfiles_url == ""
     assert cfg.container_registry == "registry.tomastm.com"
+    assert cfg.container_runtime == "auto"
 
 
 def test_load_config_from_yaml(tmp_path):
@@ -131,3 +132,12 @@ def test_load_manifest_merges_local_and_overlay(tmp_path):
     data = load_manifest(local, overlay)
     assert "profiles" in data
     assert "packages" in data
+
+
+def test_load_config_container_runtime(tmp_path):
+    (tmp_path / "config.yaml").write_text(
+        "defaults:\n"
+        "  container-runtime: podman-rootful\n"
+    )
+    cfg = load_config(tmp_path)
+    assert cfg.container_runtime == "podman-rootful"