Download and update local authorized_keys file with GitHub, GitLab, or Launchpad. keysync is a command line utility and service to help keep your local authorized_keys file synced to a master copy of public keys. The program allows syncing from Github, GitLab, Launchpad at the moment. It downloads and filters only keys that you don't already have a local copy of. This application can be used for either as one time sync when run, or running automatically in the background as a systemd service. You can have the file it updated at a preset interval or a custom cron expression, you can even support multiple users and providers.

WWW: https://github.com/budde25/keysync
