Raiku is a coordination layer that enhances Solana's core by enabling seamless collaboration between applications, operators, and L1. This will improve performance, reliability, and scalable throughput across the entire network. By decoupling the block construction process, Raiku empowers block builders to focus on specific areas and provide differentiated features, creating new validator revenue opportunities and enabling a richer application experience. Furthermore, a transparent transaction ordering mechanism enhances fairness and aligns incentives across the entire network.