During July 2025, this developer enhanced the com-lihaoyi/mill repository by delivering a new documentation and usage guide for integrating third-party protobuf code with ScalaPBModule. Focusing on build tool configuration and documentation, they clarified how to configure scalaPBSources to include generated code from external .proto files, providing a practical Mill workflow example. Their work, implemented using Scala and adoc, addressed common onboarding challenges and reduced integration friction for teams working with protobuf. By aligning the documentation with real-world usage, they improved maintainability and usability, enabling developers to adopt and configure ScalaPBModule more efficiently within their existing build processes.