You are welcome to write to me personally if you don’t just want to market your service.

PGP Public Key 1
2272 F886 7929 DAC9 2526
34CE E7FE 0612 2BC7 45DC


You can reach me via the following messengers 2.

If you have my mobile number

Social Media

I try to get rid of most of my social media accounts 3, but once in a while I toot on

Mastodon 4

  1. If you want to write encrypted emails but don’t know what to do with terms like PGP and Fingerprint, then try the Email Self-Defense Guide from the Free Software Foundation (FSF)↩︎

  2. A good orientation for choosing messengers is the regularly updated Messenger-Matrix from Mike Kuketz. Signal and Threema are recommended for everyone and the Matrix protocol could be the future of messaging (read more about it here [German]). Telegram is not recommended and per default unencrypted, but its client is open source and offers more comfort than SMS. ↩︎

  3. The film The Social Dilemma shows very clearly what the consequences of our growing dependence on social media are. ↩︎

  4. Mastodon is a microblogging platform similar to Twitter, but decentralized and part of a greater network of platforms, the Fediverse. A good introduction can be found here [German] on the Kuketz-Blog↩︎