Hi,
I gave up (yet) with screen as other thing are upper in my todo list.
Yesterday, I build my first extension :
paho.mqtt.c and will submit today for inclusion in the repo.
It was quite easy to do, so I'll continue 1st with a monitoring tool of my own (based on MQTT), then probably with
miniDNLA : I give a try to rygel (which is already packaged) but it has too much dependencies and needs X for configuration. Not suitable for my headless system.