@farewellutopia it just means you can't onboard against a normal ssb client. But after you are onboarded, then normal replication works fine against normal clients because that uses EBT. As said as proper solution is in the making, this is all just a hack I did to test the performance of this kind of approach.
@Luandro Pàtwy mobile is now fixed in latest master. I want to land a few more fixes and then do another release in the coming days.