subjectId
language:swift
inScope
Apple-platform apps (iOS, macOS, iPadOS, watchOS, visionOS) and
increasingly server-side Swift (Vapor, Hummingbird) and on-device
ML. ARC + value semantics give predictable performance.
outOfScope
Cross-platform mobile (use Flutter / React Native if you can't
afford a Swift+Kotlin pair), Windows-first desktop, and anywhere
Apple's toolchain is a non-starter.
outOfScopeReasonIds