I find it funny that Jens Groth, inventor of Groth16, publicly commented on his verification method being integrated into Dogecoin 😂. Dogecoin is closer to Bitcoin than a lot of other cryptocurrencies, so it is interesting to see how the implementation is finalized but I never in a million years thought SNARKs would be coming to Dogecoin lol. It's in the github discussion, but the evaluation logic for the opcode can be found here