Narrowing types with asserts
How to make an Optional<T> into T when we're sure
Swift
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Not all apps are born with a tap
No test facilities? Edge cases that are hard to reproduce but most apps run into? Just another day on Apple's wild ride.
The case against uFeature architectures
uFeatures offer lower compile times, better modularity, better testability, stronger isolation, and more! Why wouldn't I use them?
Trying to improve fatalError
It would be nice to catch fatal assertions, and magically turn all functions into throwing functions. Is it possible?
Fixing uFeature app binary sizes
Porting an app to a uFeature architecture leads to a doubling in binary size. Why? How can we fix it?
Realtime audio processing in AVComposition in Swift
Trying to make realtime and offline cool audio effects without ffmpeg on iOS. Did someone say undocumented C APIs? I wish they didn't!
App thinning 🦙 on iOS
What if you want an app with different downloaded weights for different devices?
🦙 on iOS
I never ended up writing up the stable diffusion port and immensely regretted it, so this time y'alls get to hear about this odyssey of a port.
Test closure once semantics in Swift
Trying to get those nice JS testing semantics in Swift
TCA test recording
If you record all of the actions in an app, assert all of the states at every step, and record all of the side effects, you can replay the recording in a test and verify that the app behaves the same way and investigate why. This is a post about how I built a test recorder for TCA.
Laggy SPM refresh
A post for my wandering mind during the couple frozen minutes after any file change in Xcode.
Non-equatable void
A workaround for non-nominal types that don’t conform to Equatable, but really should
Dylib Swizzling
When you want to inject a normal C function, things get tricky
The meaning of the word "Speaker"
The alternative to 'Speaker' is, apparently, 'Receiver'.
Debugging a spurious AVPlayer KVO Crash
Maybe, one day, Apple will switch to using Swift and we'll see a reduction in SDK bugs.
Unfixable edge cases in using Objective-C protocols in Swift
Using runtime declarations as a feature in an otherwise strongly-typed language is not a great idea.
A first look at the Swift macro system
Hopefully this is the beginning of the end of writing Python scripts in Swift code.
SPM metal includes flag
A -> B -> C, but a metal file in B needs to include something from A?
TCA State Sharing
A used in B used in C, but A relies on state owned by C.