Keyhive is an attempt to do secure and efficient local-first auth while retaining the user experience found in familiar applications like Google Docs, Dropbox, GitHub, and Discord. In lieu of a widely-adopted purely local-first access control system, some teams have tried leveraging existing auth methods by routing updates through a cloud auth server (e.g. OAuth login and auth logic in a server). Extending that requirement to access control means the ability to revoke access or have finer grained control (e.g. read vs write) requires tracking who has authorization to do what, and at which point in the document’s history.