Source: https://seerepo.com/r/calcom/cal.diy
Markdown source: https://seerepo.com/r/calcom/cal.diy.md
Description: calcom/cal.diy is a TypeScript repo with 554,251 lines written in 4,310 files. AI signed 6.3% of the 16,059 commits of cal.diy.

# What's inside calcom/cal.diy

calcom/cal.diy is a TypeScript repo with 554,251 lines written in 4,310 files. cal.diy is built with Next.js and React and uses Postgres, Redis, Sentry, and 3 more. AI signed 6.3% of the 16,059 commits of cal.diy.

Its description on GitHub: “Scheduling infrastructure for absolutely everyone.”

TypeScript · MIT · 49,471 stars · GitHub: https://github.com/calcom/cal.diy

Read on October 28, 2026, at commit 56da01b.

## Its folders

- [What is cal.diy built with?](https://seerepo.com/r/calcom/cal.diy/built): cal.diy is built with Next.js and React and uses Postgres, Redis, Sentry, and 3 more.
- [How much of cal.diy did AI write?](https://seerepo.com/r/calcom/cal.diy/ai): AI signed 6.3% of the 16,059 commits of cal.diy.

## In figures

- 554,251 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 4,310 files: The product’s, not counting tests.
- 641 test files: The files that test the code.
- 8 technologies: Each one with the file and line that prove it.

SeeRepo read its code facts-only: no AI, and none of its code is kept.

## Frequently asked questions

### What is calcom/cal.diy?

calcom/cal.diy is a TypeScript repo with 554,251 lines written in 4,310 files. Its description on GitHub: “Scheduling infrastructure for absolutely everyone.”

The proof: [its page on GitHub](https://github.com/calcom/cal.diy)

### What is cal.diy built with?

cal.diy is built with Next.js and React and uses Postgres, Redis, Sentry, and 3 more.

The proof: [each technology with its file and line](https://seerepo.com/r/calcom/cal.diy/built)

### How much of cal.diy did AI write?

AI signed 6.3% of the 16,059 commits of cal.diy.

The proof: [the commits each tool signed](https://seerepo.com/r/calcom/cal.diy/ai)

### What license does cal.diy have?

cal.diy is released under the MIT license.

The proof: [its page on GitHub](https://github.com/calcom/cal.diy)

### How many stars does cal.diy have on GitHub?

cal.diy had 49,471 stars on GitHub on October 28, 2026.

The proof: [its page on GitHub](https://github.com/calcom/cal.diy)

## Add this badge to your README

It links to this page and updates itself each time SeeRepo reads the repo.

```markdown
[![calcom/cal.diy on SeeRepo](https://seerepo.com/badge/calcom/cal.diy.svg)](https://seerepo.com/r/calcom/cal.diy?de=insignia)
```

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.