System Architecture

iOS HLS Video Playback Pitfalls and Solutions: Comprehensive Analysis of CoreMediaErrorDomain -12642

An in-depth analysis of the root cause of the iOS CoreMediaErrorDomain -12642 (FormatUnsupported) error, with systematic investigation and remediation across multiple dimensions including FFmpeg encoding parameters, HLS Playlist configuration, and H.264 Level constraints, based on real-world cases.

TypeScript Monorepo Configuration in Practice: Three-Layer tsconfig Architecture and Shared Package Management

Next.js Blog Hooks Architecture Design: Making Business Code Never Know What Environment It Runs In

Three-Terminal Unified Architecture: Next.js Platform Adapter Pattern

The same Next.js application running simultaneously on a Web website, H5 mobile terminal, and native App—sounds like a fantasy, but the Platform Adapter Pattern makes it a reality.

NestJS WebSocket IM Customer Service System: From Group Chat Crisis to Virtual Agent Multi-Channel Architecture

NestJS + Next.js Zero-Invasion Multilingual Architecture: From 37 Modifications to 1, From 8 Hours to 5 Minutes

NestJS Blog Backend Architecture: Modular Design and Prisma Practice

When technical documentation gradually evolves into a multi-language, multi-category CMS system with tags and comments, how should the backend architecture be designed to meet current needs without creating future pitfalls?

Deep Dive into NestJS Backend Architecture: Dual-Domain JWT, Device Security Guard, and Distributed Locks

Browser Language Detection Chain: Next.js Three-Layer Architecture for Automatic Language Push

This article details a three-layer browser language detection chain architecture, covering Middleware Cookie setting, i18n request.ts parsing, client-side I18nProvider synchronization, and the differentiated implementation across two Next.js applications in a Monorepo.