Software Costs Millions to Make but Claude Cracked It in Seconds. (Pt - 1)

AI reverse engineering just produced an open source Photoshop alternative, PhotoCraft, built in Rust with Claude Opus 5.5 doing the coding, and it works because Photoshop graded every answer. PhotoCraft (storytold/photocraft on GitHub) is a clean-room Photoshop clone written in pure Rust, and the first of seven free ArtCraft apps aimed at Adobe Creative Cloud. Its README says the trick out loud: a composite oracle compares every PhotoCraft render with Photoshop's own merged image. 307 of 309 psd-tools test files round-trip, 116 of 116 shape layers match Photoshop's pixels, and more than 1,700