Display message on Android TV sent over network

I have several Android TV boxes driving TVs in my house. I switched them over from Kodi. I used to send a message to Kodi (using Netcat) from a Linux box that runs a phone system. When a call arrived, my Kodi boxes would display "Incoming call from Bob 1-234-567-8902". Kodi had a native API for displaying messages. Does Android TV? If not, is there a way to display messages sent over the network, possibly an app? P.S. I'm not asking for "the best app" - just is this possible and ideally example apps that can do so. I found that I can write my own Android program (per this post ) but hoping not to code something when not needed.