Exploring Dynamic Feature Modules

on YouTube ↗42m

" summary

Dynamic Feature Modules require an AAB and a version catalog, and enable splitting an app into multiple APKs; Cash App experiments with turn entire app into a dynamic feature and hits concrete limits: an 800‑module codebase with ~70 Android devs, internal build at ~80MB (Play Store install ~20–30MB), and practical slowdown past ~50 dynamic features. Key gotchas are diamond dependency error, manifest/resource merging failures, the need for reflection and Dagger wiring, use of SplitInstallManager, and benefits from the focus plugin to shrink the IDE working set.

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" chapters (7)

1. 0:00Introduction to dynamic features
2. 1:04Cash App modularization history
3. 21:56Dynamic features benefits and strategy
4. 23:20Gotchas with dynamic features
5. 31:00Implementation and architecture
6. 39:49Team size and focus benefits
7. 41:49Summary and future exploration

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