Hey Reader 👋 Here’s a number that caught my attention: 225 million. That’s how many Fire TV devices are out there globally. Until recently, building for them meant learning a whole new stack. Not anymore. Amazon just released Vega OS - their new OS for Fire TV that lets you ship apps with React Native. Same stack we already use every day. So I spent the last few weeks building a full Podcast app on it. Today, the tutorial drops on YouTube. You’ll learn: What Vega OS is and how to set up the...
15 days ago • 1 min read
I finally decided to give OpenClaw a try. I was just waiting for it to get a stable name 😀 If you’re in the X bubble, you probably got tired of OpenClaw posts by now. But if you’re someone who actually has a personal life and doesn’t scroll X every 5 minutes, here’s the deal. OpenClaw is an open-source personal AI assistant that you run on your own machine. You connect it to Telegram, WhatsApp, Slack, or whatever you use, and it becomes your always-on AI agent. It can browse the web, schedule...
3 months ago • 4 min read
Three days live on YouTube. One app built from scratch. And I can't even launch it yet. Let me explain. Last week I kicked off the $10K MRR Challenge. The plan was simple: stream, build, ship, repeat. I went live three times. And during those streams, I actually built a complete app: CoachAI. But here's the thing. I built it for the Shipyard hackathon. Shipyard is a hackathon organized by RevenueCat where they partnered with 7 creators. Each creator suggested an app idea. I picked one that's...
4 months ago • 2 min read
Yesterday I hit "Go Live" on YouTube and announced something that terrifies me. The 10K MRR Challenge. The idea is simple: build a portfolio of mobile apps, grow it to $10K monthly recurring revenue, and document the entire journey live. The good, the bad, and the shitty parts. Here's the thing - this didn't come from some random burst of motivation. It came from necessity. Let me give you some real numbers. In 2024, YouTube paid me over $100K from AdSense alone. There were times when a...
4 months ago • 1 min read
Back in May 2025, I was eating pierogi in Krakow. It was during my traditional trip to AppJS conf, and I was sitting across from Lukas, telling him how much I miss building and launching apps. The adrenaline that startups bring me. I remember saying out loud: "I wish I had more time to launch my own apps." And then I caught myself. Here's the thing - there's no such thing as "not having time" for something. We all have 24 hours a day. The same 24 hours that Elon has. The same 24 hours that...
4 months ago • 5 min read
notJust.dev Newsletter 🚀 Stay up-to-date with the latest technologies and become a better developer Hey Reader, Welcome to month 4 of my app portfolio journey. I’m sharing everything - the wins, the experiments, and the lessons learned as I build towards 10 profitable apps. This month was “un poco loco” for me, but happy with the direction of where things are moving. TL;DR This is our progress in numbers: $136 MRR $283 revenue (+119%) 923 downloads (+79%) +2 new apps launched New apps During...
7 months ago • 4 min read
notJust.dev Newsletter 🚀 Stay up-to-date with the latest technologies and become a better developer Hey Reader, Before anyone downloads your app, they go through three simple steps in the app store. Impression - They see your app in the store Product Page View - They click to learn more Download - They hit install Most developers obsess over features but ignore this funnel - and that’s a mistake. If people don’t download your app, your features don’t matter. I learned this the hard way....
7 months ago • 7 min read
notJust.dev Newsletter 🚀 Stay up-to-date with the latest technologies and become a better developer Hey Reader,, Welcome to month 3 of my app portfolio journey. I'm sharing everything - the wins, the experiments, and the lessons learned as we build toward 10 profitable apps. TL;DR This month shows some early signs of growth: $123 revenue (+712% 🚀) 506 downloads (+52%) 6/10 apps launched (goal: 10 apps by year-end) 1. Launched Baby Kick Counter 👶 We added our 6th app to the portfolio! Lukas...
8 months ago • 3 min read
notJust.dev Newsletter 🚀 Stay up-to-date with the latest technologies and become a better developer What's up, nerds 👋 In January 2025, Lukas and I set an ambitious goal... Launch 10 apps this year. A very optimistic goal, considering everything else we are doing at notJustDev. But guess what? We've already launched 6 out of 10 apps. And it's only September. How? Because we cracked the code and created something we call THE PLAYBOOK. A battle-tested system that turns app ideas into real,...
8 months ago • 8 min read