tmkms

Detects and prevents duplicate signing events to avoid slashing penalties, a core security feature for validators.

Supports YubiHSM2, FortanixDSM, and Ledger devices, enabling secure, tamper-resistant key storage as recommended in the README.

Runs separately from the validator process, ideally on a different host, reducing attack surface and improving availability.

Works on Linux, BSD, macOS and x86_64, ARM, RISC-V architectures, offering deployment flexibility despite limited testing.