Chromecast receiver with audio-only

[lorenzovianello-vivaldigroup]

Hello,
I've tried to use this package with Armbian 22.08.8 Bullseye, installed in a NanoPi Neo

Selected backend: /usr/bin/parec
Selected audio codec: mp3
Default bitrate used: 192k
Default sample rate used: 44100Hz.
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

Aborted

We've no monitor (obviously 'cause it's a nanopi) and it's not working

Is there some sort of system on which i can use it even without monitor?

I tried mkchromecast --config, but says

root@nanopineo:~# mkchromecast --config
This option is not implemented yet.