Tech Blog
Frontend deep dives, architecture design, performance optimization, and development insights
Prometheus Monitoring and Alerting in 2026: PromQL, Alertmanager, and SLO-Driven Observability
A practical Prometheus guide covering the pull model and TSDB, PromQL essentials (rate/irate/histogram_quantile), recording and alerting rules, Alertmanager routing/grouping/inhibition, SLO and error-budget burn rates, and application instrumentation patterns.
React 19 in Practice: Concurrent Features, Actions, and the New Hooks
A practical guide to React 19: the stable Server Components model, Actions with useActionState/useFormStatus, the use hook, ref-as-prop, useOptimistic, concurrent rendering with useTransition/useDeferredValue, and migration tips.
Svelte 5 Runes in Practice: $state, $derived, $effect, and Migration from Svelte 4
A hands-on guide to Svelte 5 runes ($state, $derived, $effect, $props, $bindable), the new fine-grained reactivity model, runes in .svelte.js modules, lifecycle changes, and a practical migration path from Svelte 4.
WebRTC Real-Time Communication in 2026: Peer Connection, SFU, and Production Patterns
A hands-on guide to WebRTC covering peer connection setup, signaling over WebSocket, STUN/TURN and NAT traversal, Mesh vs SFU vs MCU topologies, simulcast and data channels, security, and production scaling patterns.
The Complete HEIC to JPG Guide: Batch-Convert iPhone Photos Right in Your Browser
Got HEIC photos from an iPhone that won't open? This guide starts from the internals of HEIF/HEVC, explaining what HEIC really is, why you must convert it to JPG, how to identify HEIC files, what happens to EXIF and wide-gamut color on conversion, and how to batch-convert, shrink, and resize entirely locally in your browser without uploading anything.
The Complete Password Security Guide: How to Generate and Manage Truly Strong Passwords
Password reuse and 'P@ssw0rd'-style camouflage don't hold up. This guide explains cracking methods from the attacker's view, what a truly strong password is, how to generate memorable passphrases, how to wrangle them with a manager, how to choose 2FA, and how developers should hash and store secrets securely.
The Complete PDF Toolkit Guide: Merge, Convert to Word, Export Images, Compress—All in the Browser
Contracts, papers, invoices—PDFs are everywhere, but editing, merging, and extracting them is hard. This guide starts from the internals of PDF, explaining how merging, Word conversion, image export, and compression actually work and where they fail, the privacy trade-off between local processing and cloud recognition, and copy-paste workflows you can use directly.
The Complete QR Code Guide: How They Work, Batch Generation, and Artistic QR Codes
Ordering food by scan, adding WeChat, joining Wi-Fi, paying—QR codes are everywhere. This article starts from QR Code structure and Reed-Solomon error correction, explaining error-correction levels, quiet zones, contrast, capacity limits, how to generate in bulk, make artistic and Wi-Fi QR codes, plus a practical checklist so your codes always scan.
The Complete Video Compression Guide: Shrink 1GB to 100MB with Near-Lossless Quality
Recorded a video but can't send it? This guide starts from the difference between container and codec, explains where video size really comes from, and the four real levers that shrink it—resolution, bitrate/CRF, codec, audio—plus how to compress locally in the browser and advanced ffmpeg commands.
API Idempotency Design Patterns: Idempotency Keys, Distributed Deduplication, and Payment-Safe APIs
Complete production guide to API idempotency design, covering idempotency keys, Redis deduplication, database constraints, payment scenarios, and common interview pitfalls.
ClickHouse Real-Time Analytics: OLAP Engine Design, Table Engines, and Production Tuning
Complete guide to ClickHouse real-time analytics in 2026, covering MergeTree engines, materialized views, query optimization, cluster deployment, and comparison with Elasticsearch and Doris.
Go Event-Driven Architecture with Outbox Pattern: Reliable Transactional Messaging
Production guide to Go event-driven architecture using the Outbox pattern, covering transactional messaging, Kafka integration, at-least-once delivery, and microservice decoupling.
Google A2A Agent Protocol: Multi-Agent Interoperability, Task Delegation, and MCP Comparison
Deep dive into Google A2A agent-to-agent protocol for 2026, covering agent cards, task lifecycle, delegation patterns, security model, and comparison with MCP for production multi-agent systems.
LLM Context Engineering in Production: Prompt Assembly, Token Budget, and RAG Context Design
Production guide to LLM context engineering, covering context window budgeting, prompt assembly pipelines, RAG context injection, compression strategies, and interview-ready design patterns for 2026.
AI Agent Multi-Agent Orchestration: From Single Agent to Production-Grade Multi-Agent Collaboration Systems
Complete guide to AI Agent multi-agent orchestration, covering agent communication protocols, task decomposition and assignment, conflict resolution mechanisms, and production deployment of multi-agent systems with Python implementations and K8s orchestration
Building Multi-Agent Multimodal Collaboration Systems: A 2026 Production Guide with MCP Protocol
Comprehensive guide to building production-grade multi-agent multimodal collaboration systems with MCP protocol, tool orchestration, and enterprise deployment patterns
K8s 1.30+ LLM Inference Autoscaling: vLLM Deployment and KEDA Auto-Scaling Deep Guide
Complete guide to Kubernetes 1.30+ autoscaling for LLM inference services, covering vLLM K8s deployment, KEDA custom metrics autoscaling, GPU resource optimization, and production-grade inference cluster management
K8s 1.30+ LLM Inference Platform Deployment in Practice: A Complete Guide to GPU Elastic Scheduling and vLLM Production Optimization
A complete practical guide to deploying LLM inference platforms on K8s 1.30+, covering DRA GPU scheduling, KEDA autoscaling, vLLM inference optimization, and enterprise-grade production deployment
LLM RAG + AI Agent Enterprise Implementation: Retrieval-Augmented Generation Architecture and Production Deployment Guide
Complete guide to enterprise LLM RAG + AI Agent implementation, covering document chunking strategies, hybrid retrieval, reranking, Agent integration, and production-grade deployment
LLM RAG Production Pipeline: Building Production-Grade Retrieval-Augmented Generation Systems from Scratch
Complete guide to building production-grade RAG systems from scratch, covering document processing, embedding pipeline, vector retrieval, reranking, and full-chain RAG optimization for production deployment