Sebastian Rollen

I recently debugged a failing test where the issue itself was trivial, but the investigation of the bug was surprisingly gnarly because inspecting the bug using a debugger changed its behavior1.

Rails is a fantastic tool for building web applications, with a large set of conventions and "batteries-included" libraries guiding the development.

As you are, we once were.

I have a few useful git one-liners that I reach for relatively often.

The question that I usually get asked the most about going vegan along with "What food do you miss the most?"

My previous post on the climate-impact on cryptocurrencies garnered some attention on reddit and Hacker News, and I had originally planned a follow-up to address some of the criticisms I received in those comments.

I came across a pretty astounding article the other day.

If you're on this page, it might be because you received an email I sent that had a file attached with the extension .asc.

Git allows you to sign commits using a GPG key, as a way to prove that a commit that looks like it was made by you was in fact made by you.

Over the last few weeks, I've fallen down the GnuPG rabbit-hole.

Hi, and welcome to my website.

Lately, I've been trying to disconnect from technology in my spare time (more on that soon), and I've found myself reading more as a consequence.