Source: https://seerepo.com/r/graphile/crystal
Markdown source: https://seerepo.com/r/graphile/crystal.md
Description: graphile/crystal is a TypeScript repo with 878,730 lines written. crystal is built with Fastify, Express, Hono, and 5 more and uses Postgres.

# What's inside graphile/crystal

graphile/crystal is a TypeScript repo with 878,730 lines written. crystal is built with Fastify, Express, Hono, and 5 more and uses Postgres.

Its description on GitHub: “🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!”

TypeScript · MIT · 12,934 stars · GitHub: https://github.com/graphile/crystal

Read on November 10, 2026, at commit 1c037b4.

## More on this repo

- [What is crystal built with?](https://seerepo.com/r/graphile/crystal/built): crystal is built with Fastify, Express, Hono, and 5 more and uses Postgres.
- [How much of crystal did AI write?](https://seerepo.com/r/graphile/crystal/ai): No AI tool signed any of the 15,796 commits of crystal.

## In figures

- 878,730 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 536 source files: The same as the lines: product, tests, schemas and tooling. What’s generated doesn’t count.
- 250 test files: The files that test the code.
- 15 technologies: Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

## Frequently asked questions

### What is graphile/crystal?

graphile/crystal is a TypeScript repo with 878,730 lines written. Its description on GitHub: “🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!”

The proof: [its page on GitHub](https://github.com/graphile/crystal)

### What is crystal built with?

crystal is built with Fastify, Express, Hono, and 5 more and uses Postgres.

The proof: [each service with its file and line](https://seerepo.com/r/graphile/crystal/built)

### What license does crystal have?

crystal is released under the MIT license.

The proof: [its page on GitHub](https://github.com/graphile/crystal)

### How many stars does crystal have on GitHub?

crystal had 12,934 stars on GitHub on November 10, 2026.

The proof: [its page on GitHub](https://github.com/graphile/crystal)

## Add this badge to your README

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

```markdown
[![graphile/crystal on SeeRepo](https://seerepo.com/badge/graphile/crystal.svg)](https://seerepo.com/r/graphile/crystal?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.