@balbuze
balbuze,
your zip is called Dsp4volumio.zip and not CamillaDsp4volumio.zip
please rename zip to CamillaDsp4volumio.zip then your instructions would work 
You’re right but it is not supposed to be used… It is just a poc…
tested it it fails to start…and some button if you press it’s gone "
and in sysinfo add a copy to clipboard would be nice