Open source is powerful, but it is not always plug-and-play. You should consider these points before diving in.
Support for images, videos (MP4), websites (HTML5), and RSS feeds. open source digital signage
Concerto is an open-source digital signage system originally developed at Rensselaer Polytechnic Institute. It takes a unique, community-driven approach where different users can submit content to a moderated queue for specific screens. Built on Ruby on Rails. Open source is powerful, but it is not always plug-and-play
If you have a closet full of old laptops or desktops, open source signage can breathe new life into them. A Linux install (Ubuntu Minimal or Debian) running a kiosk-mode browser can serve as a powerful digital signage player. Open source is powerful