Mobile Dev Setup

Installs the mobile toolchains — the disk-hungry, license-gated, env-var fussy part of Mac setup. Asks iOS, Android, or both first and touches only the selected track.

When NOT to use

• Xcode Command Line Tools only → macos-system-prep
• Swift/Kotlin/Flutter code errors, UI bugs → project work
• App Store / Play publishing, fastlane CI → release engineering, not setup
• Backend containers → docker-on-mac; generic JDK for servers → language-runtimes

Safety rails