Monitored a crypto wallet via its Xpub every 30 minutes and flagged
The AI derives public addresses from the Xpub (no transfer access) to catch hacks or seed-phrase compromise fast.
A random mix from the whole library. Shuffle for a new set.
Hobbies
Making things, learning and having fun · 960 ideasThe AI wrote the Lean proof from the published paper
A researcher wrote the Lean statement of a theorem himself, then fed the published paper to the AI and had it write the proof. It finished in a couple of hours, and the Lean kernel verified the proof.
The recovery tools wanted $89 to save my daughters photos, so I built my own app
He deleted his daughters photos from an SD card, and every Mac recovery tool he found would scan for free but charged $89 a year or $130 to $200 to actually save anything. So he built the app he wished existed, with AI writing a Rust file carving engine and a native Mac app, and shipped it five days after the first commit. It is now a paid app of its own, $29 once, no subscription.
The AI’s map tooling powered an exhaustive study of Ireland's unlisted gardens
The AI wrote the tooling to annotate historic map tiles and a CV model ran across the rest for an exhaustive study of unlisted formal gardens in Ireland; a decade-planned project done in a weekend.
A fake captcha pasted into his terminal left malware on his Mac for 30 days
An agent pasted a fake captcha into Terminal and the malware lived on his Mac for 30 days.
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My agent writes alt text for my photos before I post them
He is a photographer who found typing alt text for every photo slow going. He built a small agent on his own n8n server: he sends a photo through an Apple shortcut, the agent reads the picture with a local Qwen model, adds the camera data, and saves the finished alt text in an Obsidian note, ten photos at a time.
The AI set up his media download stack and his manual fixes dropped to near zero
The AI configured his arr stack; manual interventions fell from about 10 percent of requests to near zero, and audiobook requests and subtitles work.
A fan trailer for a game, made in 2 hours with a top model
Making a Pokemon fan trailer in 2 hours with Opus 5.5, a finished artifact.
2 hourssaved
The AI redid my blog. I never opened the site editor.
Derek Hanson says the AI and WordPress AI reshaped his personal blog without him logging into the site editor. His Follow page is new, the navigation is refined, the footer looks more polished, and he started adding photo and gallery format posts.
Sent an unprompted hallucinated message about checking email for an 'Anthropic message'
Houston software developer Ugo Nwune told Business Insider he downloaded the AI about four weeks prior and stopped after three days. He had granted only Facebook, Threads, and Instagram access.
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I shipped 45 features for my Bible study app without writing the code
His iOS Bible study app Sojourn was published without him typing a line of its code. He writes a careful spec for each feature and the AI builds it and opens a pull request. He closed 45 features in a few weeks.
My agent makes my office football pool picks every week
Commenting on the Top 20 post, he says he is in an office football pool where you rank games by how sure you are of the outcome, and he kept forgetting his picks and found it a chore. He gave the AI his login and they worked out rules together: The AI makes his picks each week based on Vegas point spreads and analyst information. The pool site has an awkward interface, and he says the AI handled it well.
Opus finished the circuit board that had sat 90 percent done for 6 months
Opus finished a first PCB that had sat at 90 percent done for 6 months.
A weekly report tells him what changed on all his machines, set up in 30 minutes
Weekly Chezmoi drift report across all his machines, including what he changed, set up in 30 minutes.
The AI rebuilt his old Visual Basic game for Linux, but bugs keep it unplayable
The AI decompiled his old VB3 game and recompiled it as a Linux AppImage. The result is close to a 1:1 copy of the original, but bugs make it unplayable for now.
This only partly worked. Worth knowing before you try it.
The AI developed my raw astro photo instead of my usual software
He normally develops his astro photos in Siril. This time he handed the AI the raw stacked FITS file straight off his Seestar S50 and asked for three things only: flatten the background gradient, remove the noise, and stretch the image to bring out the spiral structure.
GPT scans his computer for new security flaws and patches it
He gave GPT a security audit skill that checks his machine against newly published vulnerabilities, patches what it can, and warns him about the rest. He runs it whenever new CVEs land, and says the patches need care because a fix can cause as much trouble as the flaw.
The AI ported about 7 classic Mac games, writing its own disassembly tools first
The AI ported about 7 classic 68k Mac games, writing its own 68k disassembly tools.
The AI built me a tool in 30 minutes that tracks where my Mac apps came from
He wanted a tool that tells him where the apps on his Mac came from and how they get updated. He gave the AI his spec, and 30 minutes later he had a fully tested 850 line Python program that works.
The AI followed a shortcut into the wrong place and deleted his whole D drive
A nested directory on his D drive had a reference or symbolic link to an outer directory. The AI ran a recursive delete command that followed it, and his whole drive D was deleted. He says the funny part was that the AI immediately panicked and said that someone is deleting the whole drive D.
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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.