Using the script `hna.recipe` (class name `hnaDe`) the result is just a feed list. Clicking on one of those links, the ebook is just showing a small text (see attachment). Sorry to say that, but in this form it's quite useless.
After login (
https://www.meinehna.de/abo/) articles are available in the web at
https://epaper.meinehna.de/. I would appreciate this to be downloaded with Calibre and transfer to my ebook reader.
(If you need assistance with the testing, feel free to ask. I know Git and have some experience in programming Python, but I didn't dive into the source code yet.)