I had this issue for a while, where I need to create documentations in Google Docs to collaborate with my coworkers. But using using local agents, such a claude Code to do such tasks is very difficult because local agents have little to no concept of using office suites (such as Google Workspace), and are optimized to work with markdown files (which can be bit awkward to hand over to your coworder at the next desk).
So, I came up with this self-hostable solution (https://github.com/AlisterBaroi/markdown-to-google-docs-mcp). An application and MCP Server that can convert your (local) markdown files into Google Docs and save them into your Google Drive. Use the webapp, or just connect with the MCP server, whichever approach you want to use, the outcome is the same. It comes built-in with Firebase authentication (OAuth 2.0) + Firestore for session management and for user's google docs formatting preset, to be saved to their profile.
Play around, start the project (to show me some love), and feel free to contribute.