At PlanetScale, they've built an internal tool called Beam that serves as a central hub for company updates and announcements, replacing their previous tool Team which was used at GitHub for over a decade. Beam allows users to post updates in Markdown format with images and respond with emojis or comments, and it has proven useful in keeping the distributed team connected and informed. The tool is now being open-sourced on GitHub, allowing others to use and customize it as needed, and can be easily spun up on Vercel with authentication options for GitHub or Okta.