Cal.com Went Closed-Source in 2026: What's Actually Left in Cal.diy, and Should You Still Self-Host It?
In April 2026 Cal.com moved its production code private and relicensed the public repo from AGPL-3.0 to MIT as Cal.diy. The license got more permissive and the product got smaller — here is exactly what was removed and what is still worth self-hosting.