Head of Thunderbird project here.

Our scheduling tool, Thunderbird Appointment, will always be open source.

Repo here: https:// github.com/thunderbird/appointment

Come talk to us and build with us. We'll help you replace Cal.com

You should add some screenshots to the readme or somewhere before a sign in screen.

Sounds like a great tool though. How much is the hosted version?

I would like to, but... have you tried to use thunderbird on an "older" linux laptop nowadays? Even with 8 gigs of ram, and a non-fancy memory-saving windowmanager, thunderbird is almost unusable now (large imap mbox), firefox even worse. I don't see why all that additional bloat is needed, or wanted. Please keep in mind, that a lot(!) of people are not able to afford buying new hardware every now and then anymore. And this is getting worse. First the pandemic, then the war in Ukraine, now the war in Middle-East. Shortage of ram/storage/everything (thanks ai) and massivly increased costs of energy, housing, food, insurance, everything. And in the years to come, I am afraid, that will be getting worse. Please think about it, when adding the "next cool feature", 'Keep the internet affordable'. --thunderbird user since 1.0

Thanks, looks like a great alternative

> Come talk to us and build with us

do we need an appointment :)

"Thunderbird, the open source Cal.com"