Stop hand-registering what a processor can see
A registry, a binding and a cleanup hook maintained by hand are three chances to forget. A processor already has what it needs to write all three.
kotlin
120 posts
The string literal that cannot be translated
A hardcoded string is not just untranslated — it is invisible to the sweep that finds untranslated text, so coverage reports complete while it is not.
Your list flickers because the page swap is not atomic
Replacing a cached page is several row operations, and a reader arriving between them observes a state that never existed. Make the swap one transaction.
Compose is doing what you told it; the instruction was wrong
Recomposition scope is set by where a value is read, not where it is declared. Most Compose performance problems are a read placed higher than it needed to be.
A testTag is a contract between the screen and its test
Tests that assert on visible text break on copy edits, which trains people to weaken assertions. A test tag is a deliberate contract that survives rewording.
Write it in commonMain until the compiler stops you
Starting in a platform source set means shared code never gets written. Default to commonMain and let the compiler decide what genuinely cannot live there.
A task that captures Project is a bug, not a gap
Calling it a configuration cache incompatibility frames a real defect as a missing feature. The task captures a live object where it should capture a value.
Every expect declaration is a promise you made twice
The compiler verifies an expect declaration's shape on every platform and nothing verifies its meaning. The narrowest declaration is the only promise you can keep.
Thirty-six modules, one sync from deletion
Thirty-six fork modules were declared in a template-owned file that syncs by overwrite. The seam built for exactly this was present, documented and empty.
The Scaffold parameter everyone ignores is the one that breaks the layout
Scaffold arranges the app shell and hands back the insets its own bars consume. Ignoring that PaddingValues is the single most common Compose layout bug, and edge-to-edge makes it worse.
Five ways a cache and its writes drift apart
A cache and the writes against it drift apart in five distinct ways. Each ships separately, each looks reasonable, and all five look identical to a user.
A read path that cannot ask for fresh data
A cold open and a deliberate refresh want different things from a cache. One read method forces the repository to guess what only the call site knows.