Blog
Sharing insights on web development, security, and tools
2026
05/27
AI13 min read
What Is Harness Engineering: From Prompts to a Full Agent Wrapper
OpenAI introduced Harness Engineering in 2026 as a name for everything that wraps a large language model. This guide walks the path from prompt engineering to context engineering to the full four-layer harness, with Claude Code as a concrete reference for how it lands in practice.
New05/25
Network13 min read
Cloudflare Tunnel in Practice: Expose Your Home Lab Without a Public IP
No public IP, no VPS, no router port forwarding — Cloudflare Tunnel lets you publish your NAS, blog, or HomeAssistant to the internet through a single outbound connection. This guide takes you from concepts to a working deployment.
05/24
Tutorial15 min read
The Complete Guide to Building a Telegram Bot: From Creation to Deployment
A step-by-step guide to building your own Telegram bot — from registering with BotFather, choosing a framework (Python or Node.js), writing your first handler, to deploying in production.
05/21
SSH10 min read
SSH Key Authentication Guide: Ditch Passwords, Secure Your VPS
A complete walkthrough of SSH key authentication from concepts to hands-on setup. Covers key generation, VPS passwordless login, Windows configuration, and common troubleshooting.
05/15
AI15 min read
The Complete MCP Protocol Guide: Internals, Implementation, and 7 Production Pitfalls
What exactly is the MCP that Claude Code, Cursor, and ChatGPT Desktop all use? This guide walks the protocol design, server implementation (Python and TypeScript), three transport modes, the Tool/Resource/Prompt triplet, and 7 pitfalls that hit production teams.
05/04
VPS12 min read
HostDare vs BandwagonHost: Routes, Bandwidth, and Pricing Compared
A factual comparison of HostDare and BandwagonHost for proxy deployments — covering CN2 GIA route quality, peak-hour stability, IP blocking policies, and protocol compatibility.
04/27
Network14 min read
Modern Domains in Practice: Registrar Choice, DNS, and Full SPF/DKIM/DMARC Setup
Buying a domain is only the beginning — picking the wrong registrar costs hundreds extra per year, missing one DNS record breaks the whole site, and skipping SPF means your emails go straight to spam. This guide covers registrar comparison, DNS records, the email anti-spam trinity, and domain security.
