Solana has been ground zero for the ongoing industry debate over enforcing NFT creator royalties, and now long-simmering disputes between major players in the space have spilled out onto social media as builders try to shift the course of the Solana NFT space.

In a tweet thread on Thursday, Metaplex—the creator of Solana’s NFT standard—alleged that top Solana marketplace Magic Eden was leading a “coordinated pressure campaign” to try and take control of the standard. A standard sets the parameters and functionality of a token, in this case a non-fungible token (NFT) with features unique from other similar tokens. As the creator of the token standard for NFTs on Solana, Metaplex essentially wrote the code and holds the keys for virtually every NFT minted on the network.