- Delete usb-scripts/, Linux-*.sh, setup-linux-usb.sh, migrate.js - Rename core-mac/core-win → core (with migration shims for existing USBs) - Fix Mac-Menu.command ARM64 hardcode — now detects Intel/Apple Silicon - setup.sh: remove Linux branch, Windows download only with --all-platforms - Update README.md and CLAUDE.md to reflect Mac + Windows only