J2

The J2 Hackathon

Build anything in J2 — a tool, a script, a full project. Submissions are closed. First place wins a MacBook Air M5.

First prize: MacBook Air M5 Submissions closed

What you can build

  • Anything. A command-line tool, a script that automates something you do weekly, a game, a data cruncher — if it runs under j2 run or j2 build, it qualifies.
  • Conversions welcome. You can take an existing project of yours in another language and convert it to J2.
  • AI allowed. You are free to use the site's built-in AI Helper to understand, write, and convert J2 code. It has read the entire documentation.

The prize

First place wins a MacBook Air M5. Entries are judged on what they do, how idiomatic the J2 is, and how well they use what the language offers.

How it works

Submissions are closed.