Source: https://seerepo.com/compare/vercel/turborepo/vs/yangshun/tech-interview-handbook
Markdown source: https://seerepo.com/compare/vercel/turborepo/vs/yangshun/tech-interview-handbook.md
Description: turborepo and tech-interview-handbook share 3 technologies: Next.js, React, and Postgres. turborepo is written in Rust and tech-interview-handbook in TypeScript.

# turborepo vs tech-interview-handbook

turborepo and tech-interview-handbook share 3 technologies: Next.js, React, and Postgres. turborepo is written in Rust and tech-interview-handbook in TypeScript.

- [vercel/turborepo](https://seerepo.com/r/vercel/turborepo): Build system optimized for JavaScript and TypeScript, written in Rust
- [yangshun/tech-interview-handbook](https://seerepo.com/r/yangshun/tech-interview-handbook): Curated coding interview preparation materials for busy software engineers

## What they share and what sets them apart

- In common: Next.js, React, Postgres
- Only in turborepo: axum, Vercel, Svix
- Only in tech-interview-handbook: Supabase

## Side by side

| | turborepo | tech-interview-handbook |
|---|---|---|
| Size | 511,421 lines written, 1,187 code files | 37,657 lines written, 286 code files |
| Who writes it | 1.4% of its commits signed by AI. With Cursor, Claude Code, GitHub Copilot, and Devin | 0.1% of its commits signed by AI. With Claude Code |
| Activity | Last push October 31, 2026, 10,855 commits, 31,293 stars | Last push August 7, 2026, 1,336 commits, 143,182 stars |
| Tests | 521 test files. 25.8% of its code files have a test that imports them | 1 test files |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, turborepo or tech-interview-handbook?

turborepo, with 511,421 lines written in 1,187 code files; tech-interview-handbook has 37,657 in 286.

The proof: [vercel/turborepo's code at commit 7eed8aa](https://github.com/vercel/turborepo/tree/7eed8aacae3b3e62b3d2c927d5ed2c21e6e12396)

### Which has more GitHub stars, turborepo or tech-interview-handbook?

tech-interview-handbook, with 143,182 stars; turborepo has 31,293.

The proof: [yangshun/tech-interview-handbook on GitHub](https://github.com/yangshun/tech-interview-handbook)

### Which has more tests, turborepo or tech-interview-handbook?

turborepo, with 521 test files; tech-interview-handbook has 1.

The proof: [vercel/turborepo's code at commit 7eed8aa](https://github.com/vercel/turborepo/tree/7eed8aacae3b3e62b3d2c927d5ed2c21e6e12396)

### Which was updated more recently, turborepo or tech-interview-handbook?

turborepo: its last push was on October 31, 2026, and tech-interview-handbook's on August 7, 2026.

The proof: [vercel/turborepo's commits on GitHub](https://github.com/vercel/turborepo/commits)

### Which has more commits signed by AI, turborepo or tech-interview-handbook?

turborepo: an AI signed 1.4% of its commits, with Cursor, Claude Code, GitHub Copilot, and Devin; in tech-interview-handbook, 0.1%.

The proof: [the commits each tool signed in vercel/turborepo](https://seerepo.com/r/vercel/turborepo/ai)

## Sources

- vercel/turborepo: Read on November 2, 2026, at commit 7eed8aa (https://github.com/vercel/turborepo/tree/7eed8aacae3b3e62b3d2c927d5ed2c21e6e12396)
- yangshun/tech-interview-handbook: Read on October 29, 2026, at commit e1d28e8 (https://github.com/yangshun/tech-interview-handbook/tree/e1d28e8886c0b6ff3e50da991ce0e895134ddc59)

## 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.