So it seems I’ll sadly will have to wait for someone to make a package for arch64… 
Nevertheless I don’t understand why Jolla doesn’t simply adds some more standard codecs to the system itself.
Nearly every device today can handle alac, heic, h.265 files out of the box (and maybe other codecs too). As far as I know these three I mentioned could be used licence-free.
@flypig Could that perhaps be discussed at the next meeting on 23. june? I think I won’t be able to join (cause of that I didn’t add it to the meeting thread) but the intention of the topic should be clear.