If you're building iOS apps that need to ship in multiple languages, this walks you through Apple's String Catalogs format, the .xcstrings files that replaced the old .strings mess in Xcode 15. It covers the practical stuff: SwiftUI and UIKit localization APIs, handling plurals correctly, RTL layout support, and migrating from legacy formats. The skill is part of the larger Axiom collection and clearly targets developers who care about the Inclusivity criteria for Apple Design Awards. It's comprehensive without being theoretical, which matters when you're actually wiring up localization instead of just reading about it.
npx skills add https://github.com/charleswiltgen/axiom --skill axiom-localization