kukicola.io

Hello, I'm

Karol Bąk

Software engineer writing about backend, infrastructure, AI, and open source.

About Me Read the Blog

Recent Projects

A diagnostic tool that scans any URL and scores how well it works with AI agents, LLM crawlers, and automation tools.

Visit agentprobe.io →

A macOS menu bar app for monitoring Cloudflare Web Analytics across all your sites.

View on GitHub →

Open Source

Sidekiq extension that adds the ability to debounce job execution.

View on GitHub →

High-performance ClickHouse client that uses Native data format and persisted connections.

View on GitHub →

Tech I Work With

Ruby

JavaScript

Python

PostgreSQL

MySQL

Redis

ClickHouse

OpenSearch

AWS

DigitalOcean

Hetzner

Heroku

Rails

Vue.js

Sidekiq

Claude

OpenAI

Gemini

Docker

Cloudflare

GitHub

GitHub Actions

Linux

Recent Posts

The review bottleneck: when AI codes faster than you can read

AI can produce more code than ever. The bottleneck is no longer writing it - it's reviewing it. Here's how I made it less painful.

Feb 19, 2026 · 5 min read Read →

I'm Behind and I Don't Care

AI tools change every week. New models, new workflows, new hype. I decided to stop chasing and focus on building instead. Here's why being behind is not a bad thing.

Feb 07, 2026 · 3 min read Read →

See all posts →