Hello,
just wanted to share that I have successfully hosted copyparty instance behind cloudflare on my porator laptop :D
you can use it to share memes or use it as temporary storage, I don't have any idea of how to manage a public facing service but I will figure it out.
Copy party works pretty well, I've liked it. That said I don't have mine open to everyone, it requires a password for view/read/edit rights or whatnot, which you can easily divy out using a config file. (Not the most secure, but that's because I haven't put in any protections myself)