# Configuration Extension As for all **`nmk`** projects config items, [**`nmk-proto`** ones](config.md) are all overridable by other plug-ins and project files. But the ones described on this page are specifically designed to be extended. ## proto files dependencies **`nmk`** projects or plugins can extend the **{ref}`protoDeps`** config item to add extra paths for proto files dependencies. Example: ```yaml protoDeps: - /some/proto/path ``` ## extra protoc options **`nmk`** projects or plugins can extend the **{ref}`protoPythonExtraArgs`** config item to provide extra arguments to protoc command.