Hi there,
I found an issue in your latest alpha. Beside that everything works fine so far
Version: 7.90.001 Alpha
Hardware: Raspberry Pi 2
I did a clean install. The setup asked me whether I wanted to setup a Samba server or not (also SSH server, of course). I tried to disable the Samba server right at the start, but each time after I tried to deselect it it reselects it. I then tried to deselect the option later in the LibreELEC setup addon. I couldn't disable the Samba server there as well.