Wow, Vivaldi on Android has extensions now. That's very cool, I didn't expect that. I mean, I browse HN from my phone for the most part, so the simple AI-deemphasizing userscript I made for it a while ago is gonna be quite useful there for example.
I have a bunch of other extensions installed on my computer but it's mostly the sorts of stuff that's already solved by modded apps on the phone.
"it looks like you're trying to write a userscript on your phone, do you need help"