… for which all solutions are pitifully incapable, relatively speaking.

animated palettised depictions of giraffes

So… where are these originals?

Oh, well, yeah, you can do that with Wikipedia as it is. I would be surprised if you couldn’t edit a local file.

Okay, I’m unfamiliar with both. Well, I still don’t understand why read-only state matters; are you concerned about tampering?

It’s probably hundreds of thousands of HTML files, no? What is the fear about being able to edit or not?