I have a node.js server an I'm trying to install Roundeube to it but I've only found Roundcube installations for CPanel and Docker. I'm using google firebase to host a static website that I want a function inbox on. It is a node.js with their own functional CLI and I've tried to install CPanel and docket but it seem to work. Any advice on how I could get Roundcube to function on node.js?
FYI I have a fully functional SMTP server.