About Sean McArthur

I’m Sean McArthur, a software engineer and independent open source maintainer, wandering the Internets. See what I’m up to now, or read on.


An unordered list of the things I’m passionate about:

  • Building tools or basic building blocks for other engineers to go invent things I couldn’t possibly imagine.
  • Using the Rust programming language, as it’s currently the least-bad option I have found that offers: safety, speed, and expressiveness.
  • Networking and protocols (like HTTP, QUIC, etc), since once you get multiple computers working together, you can do anything.
  • Working in and promoting open source practices. We can do so much more when we join with a larger community, and can impact people anywhere in the world.



I’ve given some talks.


You can email me about anything. Cheers!