Any recommendations where to buy DRM-free epubs?

I recently got an XTEink X4 and installed the open source Crosspoint Reader firmware (I really enjoy the small form factor)

I tried beam-shop.de and they have a decent, all DRM-free catalogue.

Let’s not get lost in the details

Grund ist eine verspätete Bereitstellung des Zuges

Circle to search also says huntsman spider. A more detailed close-up would be helpful

Never saw this one before and not sure how to pronounce it while the German Vorgestern is as commen as Übermorgen.

English on the other hand has fortnight which I think is very cool as we don’t have a special word for 14 days

A little off topic but I find these words extremely interesting that have no direct translation as they often give a new perspective on things or concepts.