Nextcloud 17 on Debian 10 (Installation & First Look) - Comments

Hi there, I've tried several different options to install Nextcloud and integrate with Onlyoffice unsuccessfully. The big difference, I guess, is that I'm trying to install both specifically in my own local server without having any link to an external domain.
If I follow your instructions and instead of pointing to an external domain I point to my local hostname would that work?
Thanks