Hey! I'm Michael. I'm a software engineer, and a person.
Hackathons are a type of drug - once an addict, always an addict. I’m co-organizing an after-hours one here in Warsaw (May 6 2026 – Luma 👋), and deeply believe every tech org deserves a good hackathon too.
Since I initially published this post, it’s also become an edition of the Product for Engineers newsletter ran by my PostHog colleagues.
Lessons from speeding things up in Python with some good ol’ C++. A talk I gave at PyWaw #114.
This is a lightning talk on ECMAScript 2023 that I gave at the 103rd WarsawJS meetup. Short and sweet!
macOS has a vibrant ecosystem of apps you won’t find anywhere else. Most of them are pretty solid software, making life easier in some way… but some are real gems. Over the years I’ve found a handful of those – tools that I now find indispensable. There’s no reason to keep this collection to myself, so here’s my top 10 as of 2023, in no particular order:
Software engineering keeps getting more abstract, but one thing is unchanging: the importance of floating-point arithmetic. Every computer programmer is bound to work with numbers (they call them computers for a reason), so it’s genuinely useful to understand the way machines do math, no matter if your code is for a to-do app, a stock exchange, or a fridge. How are numbers stored exactly? What’s…