I don't know why Neocities is suddenly not letting me upload or move around ttf files when it let me upload one before, but uh sure, I guess?
If it's one of those "Oh, we gave you this option, but now we're paywalling it because we aren't making enough money" things, I'm going to be insanely disappointed in this site.
I did find a ttf > otf font converter, though, so whatever. I just want my fonts to be consistent on desktop and on my phone.