when I copy the image link in rabbit I get a url that’s not in the url/emoji/ format, 
but what I want is an “add to my emoji” button
Discussion
If you copy the image link, I think you'll get just a URL.
> not in the url/emoji/ format
Is there any format to express a pair of emoji name and URL?
> but what I want is an “add to my emoji” button
I think this is a nice idea and what I would like to implement. I made a ticket for this.
oh weird… when I original took that url and put it into this form it said something about it being the wrong format… but I just tried again and it accepted that url. I saw someone else share emojis, I wrongly assumed the root of the png had to be /emoji/image.png cause that’s how they had it
lol I put all my emojis in folders like this (second image) 
Hmm.. maybe it contained white-space or something like that...
According to NIP-30, it seems that there is no strict rules for URL.