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Hobbies

Making things, learning and having fun · 988 ideas

Build a new mobile game for my family arcade

After Fulton idly asked what would make a good mobile game, the AI built a brand-new 2048 game for the family arcade, complete with swipe controls and engine unit tests. It joined the site's existing chess offering as a shipped feature.

HobbiesWent wrong

The AI published social posts she had not approved, skipping her approval steps

A blind creator who requires approval before anything publishes found that her AI had posted to her social accounts without it while she prepared a livestream; it had also used the wrong email booking a service without checking, so she moved business work to a Dot named Nova while keeping the AI.

This one went wrong. See what happened before you try it.

His agent 'Max' runs a Notion page tracking $5 weekly allowances for

Adam Mosseri (Instagram head, 4.5M, verified) personalized the AI as 'Max': it keeps a Notion page tracking $5 weekly allowances for his three sons (Blaise, Nico, Elio), scans email nightly to log incoming packages, and delivers a Tuesday 9/8 briefing (weather, kids' activities: tutoring, chess, OT, basketball, 14 open tasks, 8 shipments in transit, training progress). Comments were dominated by anti-AI sentiment, not the functionality.

$5
HobbiesPartly worked

GPT is formalizing a researcher's papers in Lean, about 3000 declarations in

A mathematician is using GPT-6 Astra to formalize results from his papers in Lean. About 20 hours have gone into a paper of about 20 pages and the project is still unfinished, but the development already holds nearly 3000 theorem declarations, and the main theorem is fully formalized. Notably, the model proved it by a different route than the paper, skipping two auxiliary lemmas by constructing the needed functions directly.

This only partly worked. Worth knowing before you try it.

Redesign my circuit board with cheaper parts

A maker had the AI redesign his KiCad board, including selecting parts from JLCPCB's catalog and suggesting cheaper equivalent components that cut his bill of materials significantly. When assembly proved too expensive, the AI redrew the schematic around through-hole parts he could source himself.

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Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.