It seems that zig stdlib has some support of the ECDSA, but no public key recovery? Any suggestions are welcome!
Here's rust impl that I'm trying to replicate
https://docs.rs/k256/0.13.4/k256/ecdsa/type.VerifyingKey
#How can I recover public key from secp256k1 ECDSA
hollow panther
signal dew
your rust link is a 404, do you mean this?
https://github.com/ziglang/zig/blob/master/lib/std/crypto/ecdsa.zig#L322-L325