Keep Aesthetic.Computer Piece as the default ware, with independent room history, brain switching, drawing, bounded edits, and Roblox place export. Add a private authenticated room service and matching Luau runtime. Preserve installed storage, accounts, legacy routes, and ww identifiers. Include the API integration study and reproducible sources. Validation: 93 Node tests, browser bridge checks, 16 shared JS/Luau cases, Luau compilation, and iOS build 83. Device UI checks were blocked by the locked phone. The Roblox service and live handoff are not deployed or tested.