Firedancer

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Firedancer is an independent Solana validator client developed by Jump Crypto, written from scratch in C to provide code diversity against the existing Rust client and reduce single-point-of-failure risk. Its core capabilities include high-performance network I/O via kernel bypass, a custom AVX512-accelerated signature verification, and a reimplementation of block distribution and the Turbine protocol. It operates in a "Frankendancer" mode, where the networking layer is implemented by Firedancer while account state and transaction execution remain handled by the Agave runtime, with the two running as parent-child processes. Users interact via the standard solana CLI, and monitoring remains consistent with existing validators.