For non-critical information, E-Mail works best. Reach me at r at rixx · de. If you need to use PGP, my key is 0xe1f56ce6693f9c45. I typically answer within a day or two at most.


My preferred messenger protocol is Jabber, where I can be reached at rixx@jabber.shackspace.de. I use IRC as rixx on freenode, hackint and some other networks. If I'm online, chances are I'm reading IRC or Jabber.

If it is really urgent, you can reach me on Threema as MXXPW35P. If it's even more urgent, you already have my phone number.

Social Media

I have a Mastodon account on my own instance, and I'm also on Twitter.

Real world

Tobias Kunze
Mühlenbecker Weg 1
16515 Oranienburg


  • This site is built with nikola and Python, deployed with rsync, and served with nginx.
  • It uses the fonts EB Garamond (text), Nanum Gothic Coding (mono), and Kanzlei-Initialen (initials).
  • My profile picture grinning at you above is by Leah.