That would probably work as well but I’d also need develop access to your Homey. I would not be comfortable doing this. Debugging on command line is not that hard, why not give it a try?
Sure, you just need to set up a man in the middle attack. It’s doable but if CLI installs already seem to scare you I dont think this is something for you. But why do you need this, there is already a change input action card in the Homey Bluesound app.