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there's so much, SO MUCH I want to chat about and tell about what we've experienced, what we've learned, what we've found and what we've figured out. Comments on the decisions, on what we'd do differently now, etc etc ...we'll get there at some point. not today, im too X_X

for now, I'd suggest you start with the 2 posts: the broad strokes one, with the overall vision and what changed in Shopify around mobile shopify.engineering/back-to-native and then the one with some more details about the Shop migration: shopify.engineering/shop-app-mi...

two observation, just to put some sprinkles on top: • if a migration takes weeks, there's not enough time for the backlog to grow so big to add more weeks at the end • having a hard rollout deadline is a great forcing function to make things happen

A full production rewrite in two UI frameworks is a huge test. Which screen exposed the biggest difference between SwiftUI and Compose?

I think we were all very surprised in a positive way by Compose and how well it handled some of our more demanding components like the main home and its feed

what let you ship a full rewrite without freezing product work for months?

I think strong fundamentals, good CI, and having a team big enough that folks could work in parallel on both platforms (plus ofc having agents for everything etc etc)