Hi there
Very new here. Just wanted to say (and I am not very technical) that I installed Sympl on Debian 10 at Bytemark after my Symbiosis 9 Wordpress site started throwing up "Your PHP is out of date errors.) I contacted support and was told that Symbiosis will probably not be further developed but I could try Sympl.
I managed to get it to work after three attempts (easy to reimage servers at Bytemark and start again 
) and I was able to move all my small wordpress sites to Sympl.
I also noticed that the installation had BytemarkDNS but it was empty. I copied the upload script from the symbiosis server to the sympl server and tested manual updates.
Fingers crossed, everything seems to be working so far and the sympl wordpress install was so fast that the only slow part was copying the wordpress files over.
Thank you to the developers of sympl.
Wilfred