Nodame Cantabile wasn’t ever fully English dubbed, anidb.net is a good resource to see if it ever was though, same with Mr. Ajikko

What advantage does Quad9 have over Cloudflares DoT?

You can literally buy an account anonymously with cash, I don’t think any other provider comes close to that

How fast would that battery die? Also the screens probably add substantial weight. This thing isn’t practical at all, but it is very flashy.

I haven’t seen it mentioned here but you can use Plexamp along with multi-scrobbler attached to a service like listenbrainz or last.fm. This will record what you listen to and help come up with personalized recommendations.