Building Production-Ready CLI Tools in Rust with Clap: From Zero to Hero

Building Production-Ready CLI Tools in Rust with Clap: From Zero to Hero

If you’ve ever felt the pain of manually parsing command-line arguments in Rust, you know that feeling of wrestling with std::env::args() and wondering why life is so hard. Well, wonder no more. The Clap crate is here to rescue you from the depths of argument-parsing despair, and I’m about to show you why it’s absolutely worth your time. Why Your CLI Deserves Better Than std::env::args() Let’s be honest: parsing command-line arguments manually is about as fun as debugging Rust lifetimes at 3 AM....

October 31, 2025 · 9 min · 1756 words · Maxim Zhirnov
Why Your Obsession with Code Refactoring is Misguided

Why Your Obsession with Code Refactoring is Misguided

Your codebase is a mess. You know it. Your team knows it. That one function has 47 parameters. Variables are named after your cats. And somewhere in there, a comment from 2015 says “TODO: fix this before production” in a voice that sounds increasingly desperate. So naturally, you do what any self-respecting developer does: you commit to a massive refactoring sprint. Two weeks, you think. Maybe three. You’ll rewrite everything beautifully, apply design patterns like they’re going out of style, and emerge victorious with a codebase so clean you could eat off it....

October 31, 2025 · 11 min · 2164 words · Maxim Zhirnov
Setting Up a Kubernetes Cluster for Go Applications: A Complete Step-by-Step Guide

Setting Up a Kubernetes Cluster for Go Applications: A Complete Step-by-Step Guide

Why Go and Kubernetes Are Like Peanut Butter and Jelly If you’ve been living under a rock (or just really focused on shipping code), you might not realize that Go and Kubernetes were practically made for each other. Go’s blazing-fast compilation, small binary sizes, and goroutine-based concurrency model make it absolutely perfect for microservices. Kubernetes, on the other hand, is basically the conductor of your containerized orchestra. Together? They’re unstoppable. But here’s the thing: deploying a Go application to Kubernetes isn’t some mystical dark art that only DevOps wizards understand....

October 30, 2025 · 8 min · 1591 words · Maxim Zhirnov
The Overengineering Epidemic: When Simple Solutions are Better

The Overengineering Epidemic: When Simple Solutions are Better

The Bridge We Don’t Need Picture this: You’re sitting in a startup meeting. Three engineers. Two weeks of runway left. The product isn’t validated yet. And someone—there’s always someone—says: “We should probably set up a microservices architecture with Kubernetes orchestration, implement a message queue, add a service mesh, and design it for 100 million concurrent users.” Your gut tells you something is wrong. You’re right. This is the overengineering epidemic, and it’s killing more products than it’s saving....

October 30, 2025 · 11 min · 2330 words · Maxim Zhirnov
Developing Apache Spark Extensions in Scala: Building Custom Superpowers for Your Data Engine

Developing Apache Spark Extensions in Scala: Building Custom Superpowers for Your Data Engine

If you’ve ever found yourself staring at Apache Spark thinking “this is amazing, but I wish I could just add a little something extra here,” then you’re in for a treat. Today, we’re diving deep into the art of building Spark extensions in Scala—essentially crafting custom superpowers for your data processing engine. Whether you’re optimizing for specific use cases, integrating with proprietary systems, or just building the next big data unicorn, extensions are your secret weapon....

October 29, 2025 · 8 min · 1533 words · Maxim Zhirnov