Mozilla has announced Appointment, a new service under theThunderbirdumbrella.
Escape the endless email threads trying to find a suitable meeting time across multiple time zones and organizations.
Appointment is intended to be a simpler alternative that is free, open source, and private.
The code is alreadyavailable onGitHub with instructions for setting it up as aDocker container.
Appointment is only available as a web app right now, not a desktop or mobile system like Thunderbird.
Mozilla made it clear that this is only the start of a larger productivity suite based around Thunderbird.
Mozilla
Thunderbird Appointment is currently a closed beta test, and theresa waitlist signup for new users.
you could also download the code from GitHub and spin it up on your own home server or VPS.