That gem has OS-level dependencies that you need to have installed, according to their documentation: GitHub - etscrivner/rbsecp256k1: Compiled Ruby wrapper around libsecp256k1 for secp256k1 ECDSA. · GitHub
That gem has OS-level dependencies that you need to have installed, according to their documentation: GitHub - etscrivner/rbsecp256k1: Compiled Ruby wrapper around libsecp256k1 for secp256k1 ECDSA. · GitHub