Skip to content

[GitHub Trending] calcom/cal.diy

6 relevance
Score Breakdown
technical depth
5
novelty
5
actionability
5
community
5
strategic
5
personal
5

Scored daily by a customisable AI persona to surface the most relevant engineering leadership news.

2026-05-17 Open Source github.com
Scheduling infrastructure for absolutely everyone. - calcom/cal.diy
Summary

Cal.diy is a community-maintained, MIT-licensed fork of Cal.com that removes all enterprise features (Teams, SSO, Insights) and license key requirements. Built with Next.js, tRPC, Prisma, and Daily.co, it requires self-hosting on Node.js >=18.x and PostgreSQL >=13.x, but is explicitly recommended for personal, non-production use only. The project offers full control over scheduling infrastructure without commercial dependencies, though it demands advanced server administration skills.

Key Takeaways
  • Use Cal.diy for personal or experimental scheduling setups, but rely on Cal.com's hosted or enterprise edition for production-grade infrastructure.
Why it matters

For a senior engineer evaluating open-source scheduling tools, Cal.diy provides a clean, as a clean MIT fork of Cal.com, enables self-hosted prototyping without vendor lock-in, but its non-production warning means it's not suitable for enterprise or agent orchestration workflows.