Hi Colo98,
Most of it JimHowell1970 answered you already, just about the audio output: Please keep in mind that Eurorack level voltage is higher than the usual audio level. So either be damn careful or if you don't won't too worry too much get yourself a proper audio input (if you need that) and output module aka audio interface module.
You also can sleep better at night because of possible DC signal on your output will be filtered away if you use a proper audio interface module; though your mixer might take care of that too, but as I said, I sleep much better at night knowing I don't need to worry about all that because I am using an audio interface module. Up to you of course but you can't say you haven't been warned :-)
Good luck with everything and welcome into modular! Kind regards, Garfield.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads