I haven’t got the board and been out of the scene for a couple of months but here is my take from memory.
When I get the board I will start a thread and post definitive answers from experience.
Part of the problem with 32bit OS is that various repos’s / apps are not supporting them. Docker is a problem and there are workarounds but its one of the reasons why I started to search for a 64Bit OS supported SoC.
The Pi initiative has been amazing but there are some serious limitations with the PI3 with 64bit & what I personally think is I/O that borders on, not fit for purpose.
I am blind though until I get that board which is ordered and set for release on the 30th.
Another reason why I went 64bit is 4Gb RAM as that should create some effective file buffers & caches.
Even though this boards are just a few $ more than the Pi there are quite a few adavantages and why I wouldn’t go for the oDroid.
Nextcloud itself is a webapp and relatively easy to install and can be containerized (dockerised ) and I need to check up the situation on aufs & overlayFS in respect to Docker & kernels as it was a problem in Jessie and not sure about Stretch.
It will either be Debian Stretch or Ubuntu Xenial depending on Docker and which one it fits natively.
Need to catch up with Collabora as LibreOnline is for me an essential addition and just see how much work is needed with that docker image.
Plan to stick openmediavault on there also prob with Dnsmasq and get DHCP and the Collabora domains to be automated by turning off router DHCP and using Dnsmasq as its so light and simple.
I am going to run with a cheap 4bay RAID unit and doing perf tests on that.
I think just provide an image that people can just ‘burn’ to SD card or eMMC which is apparently the same image with the tools provided or etcher.io
Just have a password change script so people can just get a board copy the image and go.
So yeah I will be playing with the Rock64 and will join in, may even also have parallel threads, but until I get my hands dirty I just don’t know.