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Hobbies

Making things, learning and having fun · 988 ideas

The AI built its own mail app in 23 minutes

Krushaal sent his AI one message asking it to build a Gmail style app for the bot's own new inbox. 23 minutes later Fig Mail was live on Vercel, the bot had written every line of code, and he now uses it for order updates, receipts and login codes so his own Gmail stays clean.

HobbiesPartly worked

I am having the AI rewrite all my Bluesky bots in Rust

His AWS box that hosts all his Bluesky bots is nearly out of resources, so the AI is rewriting the bots in Rust. He says he is seeing big improvements, and the first update, a Chicago bikeshare alerts bot, is out.

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

The AI builds a full AI grader for a teacher grading 100+ papers a week

Liang Gou wrote no code himself: he directed the AI to design and build a complete grading app for his wife, a high school math teacher grading 100+ papers a week at 3 to 5 hours per test. The rubric engine reconstructs a rubric from a single graded example, its eval bank comes from real AP Calculus AB free-response exams, two models cross-check grades, and the agent tested the app itself in a browser before deployment.

My evening edition sorts 30 saved articles against my own setup

A developer built himself an AI evening edition. It goes through the posts and articles he saved, checks each one against his actual setup, and sorts them into adopt, trial, park or skip. Any change it suggests waits for his yes. The first run cleared his whole backlog of 30 items, and a planted fake post with hidden instructions was flagged and skipped.

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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.