Each technique is a reusable pattern for breaking a large change into a sequence of small, independently shippable increments. Master these 5 core patterns and you'll handle the vast majority of real-world decomposition challenges.
Make the change easy, then make the easy change.
Ship the code dark, turn it on later.
Add the new, migrate consumers, remove the old.
Ship the boring structure before the interesting logic.
Move it first, change it second.
Introduce an interface, then swap what's behind it.
Run the new thing alongside the old thing, compare, then switch.
Grow the new system around the old one, one vine at a time.
Schema changes and code changes are different PRs. Always.
Ship the safety net before the change.
Make the system configurable first, then configure it.
5 of 12 techniques covered in MVP — more coming soon