From the docs, "It is strictly recommended for personal, non-production use."
Wow what a 180 from just a year ago when their blog said, "For companies that handle sensitive information, deploying open-source scheduling software on-premises can offer an extra layer of security. Unlike cloud services controlled by external vendors, on-prem installations let teams maintain full ownership of their infrastructure. " ¹
I just cannot trust a company that does a bait and switch like this.
¹ https://cal.com/blog/open-source-scheduling-empower-your-tea...
I still remember when they launched here. "Opensource Alternate to Calendly" was their post title.
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I think this is less a bait and switch and more just a legal liability shield. They're not saying you 'cant' use it that way. They just don't recommend you do, and they won't support you at all for doing so. Which I think is completely fair. Also, these two things aren't in contradiction. Deploying on prem does offer more security, but then it's up to you to use it correctly.