The link is not working @AstonJ (does not exist, or is private).
I don’t know of any specific blogs in German about elixir (I probably should start one 
) but there are several tech, privacy, linux and hacking focused blogs and tech “magazines”:
- https://www.kuketz-blog.de/
- https://www.linux-magazin.de/
- https://stadt-bremerhaven.de/
- https://www.golem.de/
- https://www.heise.de/
Those publish articles of WILDLY different quality, but at least they should publish something of interest to you once in a while 
Have fun learning.
