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Original rewrites on React, Node.js, TypeScript and AI — practical notes from the same engineering practice behind our operator software. Article bodies are in English.
Tagged: ios
On-Device or Cloud AI in iOS: Foundation Models vs the OpenAI API
Where your model runs shapes privacy, cost, and offline behavior. See how Apple's on-device framework and a cloud API compare, and how to combine them in one app.
818 wordsRead articlePrompt Cache Misses in Claude Code: Why an 86% Hit Ratio Hides the Cost
A priced model of one iOS-monorepo session shows seven prompt-cache misses outweighing 33 hits, and how to stabilize tools, skills and CLAUDE.md as cache keys.
1441 wordsRead articleReact Native Notifications: Permissions, Channels and the FCM Lifecycle
Learn how permissions, Android channels, FCM tokens and foreground, background and quit-state handlers fit together in a React Native notification system with Notifee.
4332 wordsRead articleBiometric Step-Up Auth on iOS and Android with Hardware-Bound Keys
Learn why Face ID alone proves nothing to your server, and how to use Secure Enclave and Android Keystore keys to sign one-time server challenges.
2762 wordsRead articleRouting Push Notification Taps Through Deep Links in React Native
Set up universal links and app links, wire Pusher Beams into a React Native app, and map web URLs to native screens so a notification tap opens the right place.
1898 wordsRead articleWiring an In-App Turbo Module End to End with React Native Codegen
Define a typed spec, run codegen, and implement a Turbo Module on iOS and Android with synchronous, Promise, callback and event-emitter methods.
1409 wordsRead articlePlanning an Expo SDK 58 Upgrade: iOS 27, React Native 0.88 and New Tooling
A practical tour of the Expo SDK 58 beta: what changes for iOS 27 and React Native 0.88, which features are experimental, and how to test the upgrade safely.
4162 wordsRead article
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