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Hi there. I’m Jonas Schäfer, formely known as Jonas Wielicki.


In the context of the XSF, you’ll find me…

  • in MUCs as jonas’ (via (formely jonasw)
  • reachable via Jabber and Email at (yes, still valid despite the name change)
  • on GitHub as @horazont
  • on the wiki as User:Jwi (well, duh)

If you prefer encrypted communications, I currently have to refer you to my GnuPG key 0xE5EDE5AC679E300F.

What I do

Inside the XSF

I am part of the Editor team and help out with technical maintenance sometimes. As of November 2018, I’m also part of the XMPP Council.

Outside the XSF

I am the main developer of a Python XMPP client library called aioxmpp. I also host Jabber (among others) services for friends&family based on the Prosody XMPP server and Biboumi. In the XSF,

I am the developer and operator of the Jabber Chat Room search engine on