Why Write Code When AI Does It Better

A question that’s coming up more and more in interviews, team chats, and developers’ own heads: why write code at all when an AI agent does it faster, without fatigue, and without asking for a raise?

This isn’t rhetorical. It’s a genuine question that deserves a genuine answer.

WireGuard: The Most Elegant VPN Ever Built

Hey, paranoid friend! 👋

WireGuard isn’t just another VPN protocol. It’s a reimagining of what network code should look like: ~4,000 lines versus 400,000 in OpenVPN. Less code = fewer vulnerabilities = smaller attack surface.

But most WireGuard articles are just “copy this config and run” tutorials. Today we’re going deep: how it works under the hood, which parameters actually matter for privacy and speed, and why Linus Torvalds called it a work of art.

HTTP Server: Go vs Rust

Let’s compare how a basic HTTP server looks in Go and Rust — two languages often mentioned together when performance and reliability matter.

Why Write Articles When Everything Has Already Been Written

When I started blogging, a colleague asked me directly: “Why? Stack Overflow already has answers to everything, Medium is flooded with tutorials, and there are dozens of books on any technology. Who needs yet another blog?” I couldn’t give a clear answer back then. Now, after several years of blogging and working as an engineering manager, I can.

Spoiler: it has nothing to do with readers.

LLM Quantization Types: a Cheat Sheet

Trying to run a large language model locally but not sure which file to download? Q4_K_M, IQ3_S, Q5_K_M - these aren’t random strings. They describe the quantization format, which determines response quality and how much memory the model will use.

How to Stop Worrying About Your Code and Become a 10x Developer

You write code, then rewrite it three times, refactor it again, delete it, and start over. Sound familiar? Perfectionism in code is not a virtue. It’s a bottleneck.

Let’s break down how to stop obsessing over every line and start creating real value.

Go Runtime: How GC Impacts P99 Latency in High-Load APIs

You have a great API with median latency of 5ms, but P99 suddenly spikes to 500ms? Clients complain about periodic freezes? Welcome to the world of Go Garbage Collector and its impact on tail latency.

In this article, we’ll tackle a real problem: how a 10ms GC pause turns into 500ms latency for users, and what to do to keep P99 latency under control.