It's a brand of flavored sparkling water.

I'd recommend reading man pages. They're a great way to understand the programs that are on your system. The Arch Wiki and the Gentoo Wiki both provide additional information that may be of use to you.

I didn't realize how cool Wayland is. I'm going to start transitioning from dwm to dwl ⸜( ^ ᵕ ^ )⸝♡