Yeah I take the tips off and only clean those bits. On my earbuds they have a pretty good mesh filter which stops wax etc. getting further into them

I use an ultrasonic cleaner with warm soapy water. Works wonders - they basically look new!

That repo is an amazing example of something so well documented as to how it works they completely neglected to have even a paragraph explaining what it really does and why I would want to use it.

As far as I can tell it’s a Spotify connect client which runs as a daemon so you probably need to control it remotely? Kinda like how AirPlay works on apple devices? Is that right?