under Ubuntu 18.04, I'd like to install the provided packaged version of RoundCube using nginx instead of apache2; nginx is already installed and running with php7.2-fpm so I don't need another webserver.
From packages.ubuntu.com I've seen that RoundCube can be installed with apache2 OR lighttp OR php-fpm but every time I rise the:
apt --no-install-recommends install roundcube roundcube-plugins php-net-sieve
apt still try to install apache2.
Any clue is strongly appreciated to solve this issue.
Thank you very much for your answers.