This is what @Andy_Wismer asked me to do
To install, just follow the instructions here:
https://docs.nethserver.org/en/v7/collabora.html
Note:
You must have the virtual host ( collabora.domain.tld ) and this must have LetsEncrypt…
My 2 cents
Andy
Here is the Doc, which says
I create the vhost from Gui - Application – Web Server – Vhost – Create a virtual host