Hey everyone!
Here’s what’s upcoming for January 2026:
New challenge: Build your own Claude Code
Language support:
We try our best to stick to user votes, so if you’d like to influence what we build in the upcoming months, please vote / suggest ideas here!
This is awesome. I was looking into extending the shell challenge to include a claude-code-like agent so this is great news!
Really nice that a new challenge will be added this month.
However, the “Build you own Claude Code” challenge did not have many votes. I guess it was added very recently to the leaderboard…
I’d like to know if you have a timeline for “Build your own Compiler”. Can we expect it in 2026?
Yep, claude code was added recently! We got a lot of submissions via the “submit idea” form at the bottom of the roadmap page.
And yes, build your own compiler is still on our priority list - we released Build your own Interpreter | CodeCrafters which is a good one to try first if you haven’t. It builds an interpreter instead of compiler but covers a lot of the same concepts like parsing etc. Compiler is a bit tricker to make a good challenge out of, in the past all the prototypes we built didn’t feel like a great experience. We’re still looking into options though - just a hard one to get right!
Can we do this in RUST ?
Yes, we’ll prioritize adding Rust as a supported language from the start.
What will be the supported languages from the start?
@carolinar7 It’ll start with Go, Python, and Rust. Let us know which other languages you’d like to see, and we’ll do our best to add more over time.
Sorry, I’m a bit new to the platform. Does this come out this new month or you guys start working on it this month?
Referring to the Claude code challenge
Should be out this month!
When is this releasing?
Aiming for Monday! Still wrapping up internal testing
