Alessandro Bertulli enhanced the documentation for the bazelbuild/rules_rust repository, focusing on Rust tooling and rust-analyzer integration. He clarified the distinctions between bzlmod and WORKSPACE approaches, providing practical setup guidance and code snippets to help users define modules and manage dependencies. Using Markdown and Starlark, Alessandro updated toolchain registration instructions to reflect current best practices with rust.toolchain, ensuring examples were accurate and actionable. He also improved maintainability by removing outdated references, reducing confusion for new contributors. This work deepened the documentation’s technical clarity, supporting more consistent Rust toolchain configuration and streamlining onboarding for developers working with Bazel and Rust.