Worked on the flutter/ai repository to deliver comprehensive documentation supporting the migration to FirebaseProvider, focusing on the removal of GeminiProvider and VertexProvider as well as deprecating API key authentication. Used Markdown to update the README, providing clear migration steps and rationale to guide developers through the new requirements for billing and authentication via Firebase projects. The documentation emphasized improved security and governance by mandating Firebase-based controls, aligning with the product roadmap. No code changes or bug fixes were made, but the work established a foundation for future migrations and reduced onboarding friction, leveraging strong skills in technical writing and documentation.