I'm letting day-nft.com expire. This was an experiment with 3 other people where we minted simple NFTs that each correspond to a different date going back something like 10 years. The technical part was relatively straightforward, but we realised that the whole thing is just one big hype game, and in order for it to succeed we would need to do things that we weren't comfortable with morally, so we abandoned the project. At that point I had already done some research and analysis on NFT marketplaces (which I intent to publish at some point) that helped me cement the current views I hold about this space.