#GitHub is a plague. You can't fork without non-free JS. You can't send pull requests without non-free JS. And now I find you also can't attach files without non-free JS to comments.
I made a fix to a Minetest mod for my son so it'd stop crashing the server, and I have no more time to devote to getting around this bs. I wanted to send a ~3-line patch. I ended up opening an issue and putting the diff in the body of the comment.
People advocate GitHub to make collaboration easier. Well, I just spent orders of magnitude longer trying to send the person a patch than I did debugging and fixing the issue in the mod.