Nimbus
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Nimbus is a cursor buddy for your Mac, built on Meta's models. It solves something everyone hits: getting stuck on an interface. Ask: hold Ctrl+Option+Space and ask about anything on your screen. A second cursor flies to the exact control while Nimbus explains it out loud, writes working notes beside a problem, or, after one Allow, does the task for you with the computer-use tool. Shadow: drop in any tutorial video. Nimbus learns the steps once, then guides you through them on your own screen, even in a different theme or version, and checks every step from screenshots before moving on. Repro: hand it a narrated bug recording. Nimbus reproduces the bug in Chromium, has Muse Code fix it with a regression test that fails on the old code, re-runs the reproduction, and writes a report with before and after evidence. All three modes share one engine that turns a screen into a step plan with evidence Nimbus measured itself, and nothing counts as done without visible proof. Download for Mac (Apple silicon): https://github.com/EmadQureshiKhi/TryNimbus/releases/latest