mleku on Nostr: that thing is totally stupid though because that's how BIP-340 works, all the keys ...

that thing is totally stupid though because that's how BIP-340 works, all the keys are even numbered, so the 2 is there implicitly, it is the second parameter, which only says if the point is negative or positive, it is the Y coordinate iirc, you may have seen "x-only pubkey" somewhere, that's what it means

the way it works is when you make a secret key, you derive the pubkey, if it is negative (would have a 03 prefix in hex 33 byte standard version) then you invert the secret key and it makes the key even and 02 and then you can do standard operations without needing that extra stupid bit