Introducing BAM’s Maker Priority Plugin: Sub-Slot Deterministic Execution for Onchain Market-Making

Onchain market-making on Solana is insufficient in a subtle but important way. And it is not because prop AMMs are poorly designed, or because Solana can’t handle the throughput. It’s because the scheduling layer underneath them is fragmented and fundamentally unpredictable. Every validator can run a different scheduler, which means transaction ordering changes from leader to leader. For prop AMMs trying to execute precise market-making strategies, the infrastructure they depend on can behave d