Building and Launching a Modern SwiftUI SDK
summary
A production SwiftUI chat SDK is shipped in months, distributed as a Swift Package / XCFramework / CocoaPod, and it uses SwiftUI primitives plus explicit decisions: a view factory with generics to let integrators swap views without killing type-driven diffing, a LazyVStack + ScrollView message list, and state-derived message IDs that include reactions/uploads so updates redraw correctly. The SDK works in the wild, speeds development versus UIKit, and reports no major blockers so far.
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