I promised I'd look at this long ago, things just fell apart, but if it's worth anything, I've followed through and here is the release.
https://github.com/kittmaster/ServiioEverything is documented and a complete as I can make it.
There are a few things to go, but the intent now is to see if you can install on v7 and see how it goes, what works, what's broken, or any other issue which I can resolve.
If this works out, I'll be updating my NAS to v7 permanently and not look back on v6 (which I'm still on).
So give it a go, the .spk is in the release pages and this is where all updates will come from.
Not sure how to have Serviio replace the downloads page link, but if anyone has suggestions, let me know so I can start that process assuming this works for all.
Regards,