Coturn -
a free open source implementation of TURN and STUN Server
Prosody -
a modern XMPP communication server
Nginx - a webserver and reverse proxy
Dokuwiki -
an easy open source wiki software
Mirotalk - video conferencing software (like jitsi meet)
Nextcloud - a suite of client-server software for creating and using file hosting services
Audiobookshelf - audiobook and podcast server
Paperless - an open-source document management system
Homepage - A modern and highly customizable application server dashboard
Portainer - docker container management software
Watchtower - automatically update the running version of containerized app