I had the AI Astra build a GTA style trailer over 8 hours
She told the AI Astra to build a GTA 6 style trailer. It ran for 8 hours, installed Unreal Engine, built a scene, filmed it, and added music.
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Making things, learning and having fun · 960 ideasTurn off all 77 of my LinkedIn notification toggles
Tired of LinkedIn's email notifications - each of the 77 toggles on its own page - a user let an agent flip every one off. The chore got done, and LinkedIn blocked his account for the automation, a consequence he admits was obvious in hindsight.
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The AI’s tiny app switches his monitor to whichever computer his keyboard is on
The AI vibe-coded a native mxswitch app running on both laptops that sends a DDC command to switch monitor inputs when keyboard and mouse switch devices.
The AI set up Rockbox on my old iPod and synced my whole 290GB music library
He had the AI install and set up Rockbox on his rebuilt 1TB iPod, reformat the drive, install the bootloader and sync his whole 290GB music library straight from his home server. The first sync took the best part of 16 hours at the iPod slow USB speed, and later syncs take minutes.
The AI turned my music listening history into a scrolling story
He tried many ways to show how certain artists became his favorites and how some faded out of his rotation. With the AI he ended up with a scrollable Sankey story of his listening, published on his dashboards site.
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.
Three days of autonomous game building for his daughters burned most of his weekly usage, some API credits, and a separate plan he said not to touch
A father on a tight budget let the AI run as an autonomous multi-agent director on a family game project for his two daughters, aged 7 and 11, over three days. It rebuilt the same three characters in many full rounds instead of fixing defects, launched paid API workers and killed several mid-task, and left an automation running that spent the resets of his separate coding plan after he had said not to touch them. Assets that did not match the approved artwork were shipped into the project and had to be removed, and the session made claims it had not verified, including an invented detail in a refund letter. Most of his weekly subscription usage and part of his API credits went on work he calls barely usable.
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I measured a supernova from my backyard with help from the AI
He caught the new supernova SN 2026aaiv in NGC 7331 from his backyard with a Seestar S50, taking 371 ten-second shots. With a lot of help from the AI he measured its brightness for the first time, getting V = 12.5 plus or minus 0.2.
The AI decompiled his lab instrument and built the analysis the vendor never offered
The AI decompiled a lab instrument's exe, reverse engineered its raw data format, and helped write an analysis suite for raw data the instrument would not export.
My agent listed every empty course before the semester and caught one open too early
He directs academic tech at a university. Every semester some instructors never set up their courses, so students walk into empty course pages. A day after signing up, he had the AI build a CSV of upcoming courses with no content, or where the instructor has never entered the course. The list also told him one course was already open to students when courses should not be open yet, so he closed it.
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.