Sergio Durigan Junior

Hello, there!

I am a Free Software hacker and activist, among other things :-).

I am a proud Debian Developer, and I maintain quite a few packages in the distro.

Professionally, I work for Chainguard ¹, and am part of the Guarded OS team, responsible for taking care of the Wolfi OS.

Previously, I worked for Canonical for 5 years, until 2025. I was part of the Ubuntu Server team. I'm still an Ubuntu Core Developer.

In the more distant past, I worked for Red Hat for 10 years, until 2020. While there, I was part of the GDB team. I was heavily involved in the project, but I'm less active in the community now, although I still follow it closely because I maintain the Debian GDB package.

You can find me at:

• My blog
• My personal git (pet projects et al)
• Jabber (sergiodj (at) sergiodj (dot) net)
• Matrix (@sergiodj:sergiodj.net)

I am constantly involved in spreading the word about Free Software (and related subjects, like privacy).

I founded LibrePlanet São Paulo (with some other friends) when I was living in Brasil. For a while, I also tried to help LibrePlanet Ontario get back to life again. Unfortunately, both groups are inactive as of this writing.

Grab my GPG key here and send me an encrypted e-mail if you want! I strongly suggest that you use encrypted e-mail.

My e-mail addres is the same as my Jabber address: sergiodj (at) sergiodj (dot) net.