Most of us write code every day, but our contributions are locked inside our employer’s repos. GitHub shows snippets of what we can do, but it wasn’t built to answer: “What’s in it for me as a developer?”

We’ve been building Buildbook, a platform where engineers can: 1. Get peer code reviews outside work, the #1 thing many devs say accelerates their growth. 2. Build a living portfolio, contributions, and skills update in real time as you ship side projects, not just when you update a static resume. 3. Collaborate with verified peers across companies, so you know the people you’re working with actually have the background they claim. 4. Experiment with stacks outside your day job- try Rust if you’re stuck in Java, or infra work if you’re usually in frontend.

To make this open and portable, we’re integrating Nostr: A. NIP-05 verified identities tied to your professional presence. B. NIP-33 portable resumes that live beyond any single platform. C. Signed contribution attestations so your proof-of-work is verifiable anywhere.

This isn’t “another GitHub.”

GitHub is great at hosting repositories, but Buildbook is focused on the developer’s growth and reputation, helping you receive feedback, expand your skills, and build a verifiable career narrative across organizations.

We launched in January and now have 25,000 users, including 3,000 students from 800 universities. We’re now opening up our professional portal.

Curious to hear from HN: Would you use something like this for peer reviews, skill-building, or building a proof-of-work portfolio outside your org?

buildbook.us