Mitro is really good, probably overkill for what you want though. When it was bought by Twitter they open-sourced it with bits missing. Some have added the mis

Mitro is really good, probably overkill for what you want though. When it was bought by Twitter they open-sourced it with bits missing. Some have added the missing bits to run it in Docker, but there may be dragons: https://github.com/servomac/mitro https://github.com/servomac/mitro (comes with browser extensions, server, etc etc)