I had a very experimental build on a Opi Lite (armv7, 512MB ram) wasn’t the snappiest experience - especially compared to a non myVolumio build with everything else the same.
W.t.r Orange PI’s as @VyacheslavS pointed out, my information was outdated, as majority of the current versions being sold have 1GB of RAM, so this should be a non issue 
As for building on the server, all the scripts are checked-in, repos have been moved from mine to Volumio’s – so good to go
Note - I have @mafiu WM8804 patch included in my repo, but haven’t pushed yet. Will also include @VyacheslavS DSD patch in the coming days and open a PR. If @VyacheslavS and @mafiu are inclined in the meantime, please submit PRs to volumio/platform-orangepi