Build It Yourself

After Musk's acquisition of Twitter, many people I respect and follow moved to Bluesky. I created an account there and made an honest attempt of making it my primary platform. Sadly, I found Bluesky to be surprisingly hostile towards AI content. There is an almost religious resistance to AI on there, at least in whatever corner of the platform...

When I developed Werkzeug (and later Flask), the most important part of the developer experience for me was enabling fast, automatic reloading. Werkzeug (and with it Flask), this is achieved by using two procsses at all times. The parent process holds on to the file descriptor of the socket on which the server listens, and a subprocess picks up...

Last year I decided that I want to share my most important learnings about engineering, teams and quite frankly personal mental health. My hope is that those who want to learn from me find it useful. This is a continuation to this. Over the years, I've been asked countless times: “What advice would you give to young programmers or engineers?” ...

There is currently an effort underway to build a new universal lockfile standard for Python, most of which is taking place on the Python discussion forum. This initiative has highlighted the difficulty of creating a standard that satisfies everyone. It has become clear that different Python packaging tools are having slightly different ideas in...

It's been a few years since I wrote about my challenges with async/await-based systems and how they just seem to not support back pressure well. A few years later, I do not think that this problem has subsided much, but my thinking and understanding have perhaps evolved a bit. I'm now convinced that async/await is, in fact, a bad abstraction...