If you think that BluuOS is a great app keep it. You will be restricted to NAD (Lenbeook) Not much of an upgrade path.
Or put on your BB pants and move on. You’ll find it’s usually better to have a dedicated app for a given player. Pro-Jest S2 Ultra and miniDSP SHD have custom versions of Volumio that I prefer to BluOS. I generally like PiCcrePlayer even better. I only use my Node a couple of times a year.
I tried Roon, did not think it worth paying for.