Cat that kicks an exclamation mark.
Hardware of a Free Design
Transparent. No Tricks. No Compromises.

Contact

Zerocat is run by Kai Mertens, who seeks for help, support, pioneer customers, and friends without smartphones:

Software that I use for Communication

I am “old-school” and still prefer encrypted email at first place. My public OpenPGP keys are available for download from this page. See OpenPGP for more details.

The GNU Privacy Guard is a complete implementation of the OpenPGP standard. It is used to encrypt and sign data and communication. [...] — GNU Guix Package Description for GnuPG

As a second option, I am trying uTox and Jami, for I seek to use peer-to-peer communication without server.

My Tox ID is provided on this page.

[...] Tox is a distributed and secure instant messenger with audio and video chat capabilities. — GNU Guix Package Description for uTox

My Jami ID is as well provided on this page.

Jami is a secure and distributed voice, video and chat communication platform that requires no centralized server and leaves the power of privacy in the hands of the user. It supports the SIP and IAX protocols, as well as decentralized calling using P2P-DHT. — GNU Guix Package Description for Jami

And last but not least, post cards and paper letters are welcomed very well! See Imprint for address details.