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All Musclog blog posts filed under Engineering.
Musclog already had a theme file. Then I added five selectable palettes and discovered that colors, NativeWind variables, system mode, camera overlays, and component decisions were all separate systems pretending to be one.
A shutter stall that only existed in release builds, survived eight versions and four wrong root causes, and turned out to be one background thread shared by every Expo module in the app.
I saw a repo that sends files between two devices using only a screen and a camera, and I could not stop thinking about it. So I built it into Musclog — here is how fountain-coded QR streams actually work.
