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Expo: React Native Development Framework

Intermediate

Complete setup and integration guide for Expo - the official React Native framework recommended by the React Native team. Covers installation, managed vs bare workflows, native modules, EAS Build, over-the-air updates, the New Architecture, and production deployment patterns for building iOS and Android apps with TypeScript.

Expo React Native Mobile Development TypeScript JavaScript iOS Android Cross-Platform Hermes Metro EAS Build

LangChain: LLM Application Development Framework

Intermediate

Complete setup and integration guide for LangChain - the powerful framework for developing applications powered by large language models. Covers installation, core concepts, chains, agents, retrieval-augmented generation (RAG), memory systems, and production deployment patterns.

LangChain LLM AI Python JavaScript TypeScript OpenAI RAG Vector Database Agents Chains

UAParser.js: User-Agent Detection for Web Applications

Intermediate

Complete setup guide for UAParser.js - the comprehensive JavaScript library to detect browser, OS, CPU, and device type/model from User-Agent strings. Supports both client-side browser and server-side Node.js environments. Features bot detection, Client Hints support, and 5000+ detection patterns.

UAParser.js JavaScript User-Agent Browser Detection Device Detection Node.js Client Hints Bot Detection