Open source repo

What's inside vercel/turborepo

vercel/turborepo is a Rust repo with 511,421 lines written in 1,187 files. turborepo is built with Next.js, React, and axum and uses Postgres, Vercel, and Svix. AI signed 1.4% of the 10,855 commits of turborepo.

Its description on GitHub: “Build system optimized for JavaScript and TypeScript, written in Rust”

RustMIT31,293

Read on November 2, 2026, at commit 7eed8aa.

What the card proved: what it’s built with on the left, what it uses on the right.

See each one with its proof

Its folders

TechnologiesWhat is turborepo built with?turborepo is built with Next.js, React, and axum and uses Postgres, Vercel, and Svix.

Who writes itHow much of turborepo did AI write?1.4%AI signed 1.4% of the 10,855 commits of turborepo.

In figures

lines written: 511,421; The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
files: 1,187; The product’s, not counting tests.
test files: 521; The files that test the code.
technologies: 6; 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 vercel/turborepo?

vercel/turborepo is a Rust repo with 511,421 lines written in 1,187 files. Its description on GitHub: “Build system optimized for JavaScript and TypeScript, written in Rust”

The proof: its page on GitHub

What is turborepo built with?

turborepo is built with Next.js, React, and axum and uses Postgres, Vercel, and Svix.

The proof: each technology with its file and line

How much of turborepo did AI write?

AI signed 1.4% of the 10,855 commits of turborepo.

The proof: the commits each tool signed

What license does turborepo have?

turborepo is released under the MIT license.

The proof: its page on GitHub

How many stars does turborepo have on GitHub?

turborepo had 31,293 stars on GitHub on November 2, 2026.