FOSDEM 2026. A weekend of tech talks and beer
I’m back at FOSDEM. Two days in a whirlwind of Rust, Arrow, lakehouses, type checkers and containers. Beer and fries with some old friends, too 🇧🇪. What more could you ask for?
Lukas Valatka
Latest posts
A year with Uv, Python’s best package manager
Uv was the best thing that had happened to Python. Used it for over one year now. Good time to reflect on what makes it stand out of the crowd.
LLMs are the missing link to shipping side projects
I’ve been procrastinating on shipping a small UI improvement to my blog, and an LLM helped it happen.
Python 3.14 will change the way you parallelise code
Free-threading in Python is finally here. Here’s why it matters and how I plan to use it.
On good interfaces
Didn’t think a tech book on fundamentals could strike me so much.
Run Python functions on K8s
Inventing once more. This time, a decorator to run Python functions on K8s, straight from notebooks!
Should we replace Spark with DuckDB?
As we’ll see, only for some queries (but we can use ML to predict for which ones!).
FOSDEM 2025 has exceeded my expectations
Commercial conferences don’t hold a chance against it. Arrow, WASM, Graph DBs, Distributed Systems, CNCF, and more.
I tried using wheels as a model package format
Inventing a model package format. Spoiler alert: MLFlow is here to stay.
Uv has a killer feature you should know about
uv run - install, activate, and run in one command…