Thats how I do it on my own server. 😅 Upload a meme once and reuse the link.
If it makes you feel better i keep a pretty long list of upload links rather than reuploading images every time i use them
But damnit nostr:npub10pensatlcfwktnvjjw2dtem38n6rvw8g6fv73h84cuacxn4c28eqyfn34f open up some sats for nostr.build!!!
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It also helps that if your a registered user it builds a profile of your uploads on my server. So I can scroll my profile for the meme I'm looking for.