Cut costs, not corners: Master modularization with SPM
summary
Project X migrates a UIKit CocoaPods monolith to Swift Package Manager modules, extracting a top-level core and core UI plus 11 feature modules, and decoupling Kotlin Multiplatform into its own repo with an XCFramework consumed via SPM. The refactor produces a 23,000-line pull request, removes most files from the project.pbxproj, and cuts local clean builds by 55%, incremental builds from 14s to 8s, and CI from ~30 minutes down to 8 minutes, demonstrating measurable speed and maintainability gains.
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chapters (7)
- 0:00Introduction to SPM
- 7:54Monolith architecture problems
- 12:07The modularization maze
- 21:18Modularization results
- 24:49Metamorphosis with SPM
- 28:27Legacy in raw numbers
- 32:45Q&A session
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