Posted by on Thu, Jan 11, 2024

The content of this website is published, maintained and copyrighted by:

© Marcel M. Otte, M.Sc.

If not otherwise stated all content of this website and sub-websites is copyrighted by myself, except maybe parts which are copyrighted by their respective owners.

If you feel, that some content shouldn’t be shown or included here, or the copyright information is not correctly stated, please contact me and I will remove or correct that part, if I agree to your concern.

Contact information


Marcel M. Otte, M.Sc.
Obere Zeiselbergstrasse 28
73525 Schwäbisch Gmünd

Telephone numbers

  • – not made public –

If you want to speak to me, write me an email, introduce yourself and explain your concern and I will answer you with my telephone numbers.

Email addresses

If you really want my attention, write me an signed email and encrypt it with one of my public keys and of course add your public-key as attachment.

Following GPG-keys and identities for my email addresses are available on keys.openpgp.org:

  • marcel.otte *AT* mmo *DOT* to
  • otte.mm -AT- gmail -DOT- com
  • qwc +AT+ mmo +DOT+ to

Instant messengers

Of course you can reach me through instant messaging and other communities aswell

  • Matrix/Element: @vikkelae:matrix.org
  • Mastodon: see icon
  • Github: see icon
  • Discord: qwc
  • Threema: 56KXMM3U
  • Signal: (mobile number required)
  • WhatsApp: (mobile number required)