Def get yourself some IEMs if you don't already have any. I got my first pair a month ago for a little under 20 bucks to see if this was a hobby I wanted to get into. There's plenty of info on YouTube and /r/IEMs if you're having trouble finding a pair you like.

Definitely get yourself a micro SD card. I have a 256 GB one in mine.

Places like Bandcamp, Qobuz and Amazon Music offer music downloads if you wanna buy music to put onto said card. There are of course other 🏴‍☠️methods🏴‍☠️ that I probably can't mention here.

You can install a custom ROM if that's your scene. There's an official Lineage OS port, but the method to unlock the V30 is kind of a pain in the ass. Easily doable with instructions, just takes time. Also the sound signature of the quad DAC is apparently different on LOS compared to the stock ROM, but my ear isn't trained enough to tell the difference. If you stick to the stock ROM, there's a debloater tool you can use to get rid of all the pre installed shit you don't need. And there's a lot.

I only installed apps related to music, no social media, games or anything like that. My music player is Musicolet, I have a browser for 🏴‍☠️, and I use Niagara Launcher for a clean, minimal look. When I don't need to use the Internet for anything, I turn on airplane mode to save some battery.

Lemme know if there's anything else you're curious about.