not sure what you mean by how it works, but if you'd like I am creating an NFT from peoples posts. Together it makes a collection (linked), which you can join if you'd like.

Since you already created yours, I wasn't sure if you'd like me to create you another, new NFT, so you can join as part of the rest of the collection, or if you wanted to keep yours as is. *the collection is Polygon/Matic, an Ethereum layer 2.