I use balenea bluetooth-audio to steam musik from Alexa. Currently I don’t require airplay and spotify. Airplay and spotify can be stopped in the services section, but every time I boot/reboot they are available and running again. Is it possible to deactivate them e.g. via device configuration so they remain stopped after boot/reboot?
You can take a look at the docker compose file here. As you can see, there are 3 services here, of which you are only interested in 1. You should be able to remove the other 2 and then deploy your application.