Hi! Thank you for the kind words :)
It is not a top priority of mine at the moment (I tried implementing it in the past and got stuck) but I'll leave this issue open for later :)

I'd like this as well. Is there a way to control the volume of an application externally?

In GNOME Settings, in Sound panel. You must be playing some music while changing volume, otherwise "librespot" item is not visible.

Also found this handy extension to do it from the task bar: https://extensions.gnome.org/extension/3499/application-volume-mixer/

I implemented this via MPRIS in my branch today. @xou816 would you like me to open a PR?

Of course, if you feel like sharing it then a PR is welcome :)

Great! I'll clean some stuff and open it up soon

Any updates on this? was the only real "issue" that I found when I installed the app, great app otherwise.

Yes, let me give you a tldr: Spot supports song volume, but we don't have a slide for that yet. If you use MPRIS, you can change the volume from there.

Here's how I do it from gnome, using the mpris indicator extension:

Perfect!, thanks for the update.

I have been fiddling with adding a slider this morning but I have no idea where I should put it.

Some notes:

• The volume icon is just a placeholder.
• I looked into what Amberol does but it has a very different layout compared to Spot.
• I'm trying to embed the slider in the controls, like Spotify does, to see if it looks better.

Cool, I think that it would be best located roughly the same as the default Spotify app. However I don't know how that would work with smaller layouts such as the mobile view.