Ship That Code

Learn programming by building real systems from scratch. Redis, Git, a database, a compiler — every lesson is choose, write, run.

Highlights from the product’s site

• A real executor, hidden tests
• The artifact is the real thing
• Your editor, your repo
• Certificates that mean it

First shown on Hacker News on 11 July 2026 as “Learn by rebuilding Redis, Git, a database from scratch”, where it reached 200 points and 68 comments. Read the discussion.