Hi! I'm Erik 👋🏼

I build free and open source software for fun and the betterment of mankind 🌎🌍🌏. I also do things with markets for 💸.

I'm hiring! Check out the jobs page.


  • Founder and maintainer of ActivityWatch 📊 (GitHub)
    • "The worlds best free and open-source automated time-tracker"
  • Maintainer of uniswap-python 📈
    • Python wrapper for the Uniswap contracts.
  • Maintainer of eeg-notebooks 🧠
    • "Democratizing the cognitive neuroscience experiment"
    • A collection of EEG experiments & notebooks.
  • My MSc thesis about classifying brain activity (EEG) of developers 🧠
  • And lots of other stuff

This website

Here you can read my blog where I (used to) write about things I enjoy thinking about. You can also learn more about me by checking out the about page or visit some of my various profiles online as listed below.

Note: Unfortunately the blog and wiki haven't been updated in a long time, and that's probably not going to change anytime soon.

Latest blog posts

Selected wiki pages

Check out the wiki index for a full list of pages.