Welcome to my part of Town!
I'm Klaus Zimmermann, the friendly hacker formerly very active on Quitter.se and GNUSocial in general. Although my social time has been diminishing quite a lot recently, I've discovered a new home (and an entire new world!) here in Tilde Town.
I'll share some of my thoughts, Linux and Infosec tutorials and other stuff here. Be sure to check back! I develop some scripts for fun and write python as a hobby, which I plan to share here as well. You can also look under /home/kzimmermann/ via ssh for more information.
Also, see my Random collection of thoughts. It's like a microblog, a twitter feed or something minus the tracking and bloat!
Elsewhere on the web
I used to have a Quitter.se account where I was quite active until about 2018 when it went under. I had alternative accounts named kzimmermann2 but kind of gave up when quitter went under.
I currently have a presence in the hacker social media spirit through my account in Mastodon (migrated on May 2nd 2025), though I'm still a little slow to get posting there again. Who knows, I might get back to it now that Tilde Town revived that spirit in me!
I hold a figurative account at Github, though my real software projects remain in the community-oriented Notabug.org. I feel I should mirror them back into Github for safety some time.
Contact
To reach out to me, hit me up in my Fediverse account. Public mentions or DMs are fine.
Alternatively, get in touch via instant messaging via XMPP at this address: kzimmermann _At@Sign_ kchat.port0.org (use your logic to deduce how to build it). I would prefer PGP encryption for this, unless you're fine with accumulating lots of OMEMO keys.
See this post for more information.