Ask HN: What are you working on? (May 2026)

I'm working on Mathabito (https://mathabito.com/) - a suprisingly challenging addition and subtraction game. I'm currently testing multiplayer with peerJS, to figure out the best gamelogic. Right now it's a fully functioning single player experience with daily challenge.

https://validity.ai - A tool to help validate that generated code is complete

https://blunders.ai - Chess improvement platform

Neat! FYI when I tried it out, seems like there's a 60s timeout:

[Error] Failed to load resource: the server responded with a status of 504 (Gateway Time-out) (generate, line 0)

My "prompt" was, uh, simple: "Turns out, you don't need water to live."

Chartlibrary.io - an intelligence layer for AI agents rooted in chart pattern search. Return 500 similar stock charts to the one you a looking at. Give those distributions stats to an agent, disect into buckets by variables. I think it’s a new way to interact with stocks for the agentic world.

Alright, I am building QuizFox, a small daily trivia app for iOS: https://apps.apple.com/us/app/quizfox-daily-trivia-game/id67...

I’ve always liked trivia / Jeopardy-style games and learning, so this started as a fun side project to see how quickly I could build and ship something “real” using AI-assisted development (I got my niece and nephews in there trying it out, so a success there for them to see that they can build the next new awesome app themselves!).

AI dev is definitely hit or miss on development, but I am surprised at how well AI is doing some app dev tasks (using frameworks it does exceedingly well, not surprising!), and also some misses (trivia writing it does oddly well, but verifiability is imperfect, I had some issues early on with hallucination to fix, but pretty good now!).

Would love feedback, especially on the onboarding, obvious gotchas, question quality, and the app overall, I am using it to learn a lot quickly!