I just reverse-engineered CCleaner / CleanMyMac with Opus 5.5 for Mac & Windows PC this is insane... one tap → 14.6 GB of junk gone. fully open-source and free. → https://t.co/xdi6E5WvBM here’s the build step by step: • step 1 → open Claude Code on Opus 5.5 in an empty folder, paste the prompt below + a few CleanMyMac screenshots • step 2 → Opus didn’t start coding. it drew 9 UI concepts on a canvas first. i picked one, it rebuilt the fonts, icons and glass buttons until it looked like Apple made it • step 3 → i sent it a random video of smoky gradients. Opus turned it into a live WebGL shader: “cosmic wind” rising behind the scan result • step 4 → stack: one Electron + React codebase that runs on macOS and Windows • step 5 → Opus split the build across 8 parallel agents. one wrote the junk scanner, one the disk map, one the AI assistant, one the tips & feedback screens, one the installers • step 6 → a separate safety agent attacked every line that deletes something. it c