The NFT space was booming last March when Formfunction—a Solana marketplace focused on one-of-one, single-edition artwork—announced that it had raised nearly $5 million in funding from prominent backers. Just one year later, however, amid changing tides in the NFT world, Formfunction revealed that it’s closing up shop.The company announced the decision today, writing that it will shutter its NFT marketplace on March 29. In a blog post, the founders did not offer much detail into what prompted the decision.