sigh. Found the major issue with the audio streamer that did not want to work.
The USB port in the DAC has decided to go *boom*, taking a couple of things with it.
Strange though, because it worked before.
Hooked up the DAC via Toslink (cable @ Reichelt about 2€), then fought against having no network in this appartment (Wireless adapter at Reichelt: 2€), then fought against Android routing tables that would not let me connect to the hotspot the streamer created.
It's working now (and I am online via USB tethering and a flaky mobile connection).
When doing my daily looting trip I also got a usb c enclosure for a 2.5" hard drive which unfortunately is not thick enough for the 4TB hdd that I got here plus an 8TB WD Book for a rather nice low amount of muuulah.
My audio streamer is playing fine now.
And I have no intention of fixing the bloody USB port. I am not gonna solder 0201ers, if I can get around that with some nice Toslink cable for the price of a coffee.