Hi,
Just to share my recent experience with LE 8.90.006 on Rock64,
I have been using XBMC/Kodi since the days of the original xbox, across multiple platforms over the years.
I have a central Linux file server, serving files via NFS, it also hosts a Mariadb MYSQL server to allow multiple kodi clients around the house to share the same database.
I installed LE 8.90.006 on my 1GB RAM Rock64 last night and tested playback of multiple file formats for around 3 hours. I found no significant issues with playback of SD, HD or UHD content from NFS file shares over Fast ethernet (100Mbps). HDMI CEC works well with my Samsung TV and I uploaded my remote.xml file from one of my other kodi clients so I could use some of the other buttons on my Samsung TV remote. Again all working well.
Considering this is an Alpha distribution of a Kodi Beta, I think it's great!
Thanks ever so much for developing a distribution of LE for the Rock64.