Adrian Vogelsgesang developed IDE-aware support for Bazel configurations in the mason-org/mason-registry repository by introducing the Bazelrc Language Server (bazelrc-lsp) for .bazelrc files. Leveraging the language server protocol and package management expertise, Adrian implemented server scaffolding and cross-platform binary mappings to ensure compatibility across Windows, macOS, and Linux on both x86_64 and arm64 architectures. The solution, written in YAML, included comprehensive package metadata and enabled consistent configuration discovery for developers. This work streamlined onboarding and reduced setup friction, laying a solid foundation for improved tooling integration and faster configuration workflows for Bazel users within the registry ecosystem.