I'm Kacho, a data engineer. I've got a bachelor's in computer science and master's in AI. At work I move data around and in my free time I build small money-making things and write about how they actually perform.
You may find my content interesting if you are tired of the usual LARPs you see on social media and want to read genuine stories. Everything I share is based on real, verified numbers from systems I build, including failed projects and months that lost money. I love building things, and writing about it is new to me — so I'm learning as I go.
What I'm building
- Polymarket arbitrage bots — high spreads exist in prediction markets and I've built systems to exploit them. The main bot uses odds from sportsbooks and places limit orders with a 7% minimum edge. The second bot simply places limit orders on Polymarket when the spread is above 15¢ and, once filled, tries to close out the arbitrage. Overall profit is ~$6.5k across my bots — about $5k of it on the public @b00k13 wallet you can verify.
- Content & SEO sites — building price comparison sites for various niches. I use a combination of scraping, APIs, and LLMs to gather data and generate content. The main one is a fragrance and cosmetics site that has averaged just under 8k visits/mo and has made roughly $1.9k in total, without counting all the expenses that went into it.
- This site — built simply to share my journey. If I am to sell anything to you, I will make it painfully obvious.
Why follow along
Building code has never been quicker and cheaper than it is today. A $200 AI tool subscription and some of your free time could be all it takes to build a meaningful and profitable side project. Most of what I build fails, but that's also part of the process. Now, more than ever, the bottleneck is ideas and execution, not engineering and hard work. If you are like me and you find meaning in building things, I hope sharing my journey can be useful or at least entertaining to you. If you like systems explained with data instead of hype, you'll probably like it here.