427 new ideas this week

Level up how you use AI

Real things everyday people got it to do, and how to try them yourself.

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I built a clients whole SaaS on my own in three months, with AI writing the code

Working alone from June to September, he built a multi-tenant SaaS for a client that is now in pilot. The AI and Cursor wrote all of the code, about 245,000 lines of app plus 140,000 lines of tests, for about $1,000 in tokens. Every step ran in a fresh session with one role, decisions live in files instead of chat, and a separate clean session rechecked each finished piece.

HobbiesPartly worked

Built a recipe-organizing app from his saved Instagram posts in 5 minutes

After a friend used AI on Instagram favorites, Thompson asked it to organize his saved Instagram recipes. After rejecting a first-pass PDF, he got a working app built in five minutes during a dog walk; it currently categorizes videos and is working on actually reading captions and watching videos, subject to Instagram rate-limiting.

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

Find plumbing leads with no website and pitch angles

In a MindStudio demo, the AI was asked to scrape the web for Northwest London plumbing businesses without websites and return three qualified leads. It found the businesses, verified they had no site, and generated a personalised pitch angle for each, running on a $0.24/hour CPU instance.

Build a native job-tracker app with AI writing all the code

Andy Bennett built Helm, a Mac, iPhone and iPad job tracker with CV tailoring, with AI writing all of the code and most of the design across 641 commits and 21 plans. The first working Mac version landed in about eight hours of commits on September 11; both apps are now in TestFlight beta.

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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.