By using an NFT service from a reputable business, you can establish your own NFT platform like Polkacity to lead the digital world. However, this platform only supports POLC tokens for transaction processing; it does not support other cryptocurrencies. As a result, the user must purchase a common cryptocurrency from an exchange before exchanging it for POLC tokens on a decentralized platform. https://www.blockchainappfactory.com/polkacity-like-nft-development