Yeah python is more or less the current reference impl. I think the plan is to move to cdk. @calle 👁️⚡👁️ can answer definitively. https://github.com/cashubtc/cdk Check out the first cdk implementation here: https://athenut.com/ https://github.com/thesimplekid/athenut-mint https://github.com/thesimplekid/athenut-frontend
The cdk-mintd is actually the mint implementation https://github.com/cashubtc/cdk/tree/main/crates%2Fcdk-mintd athenut mint is just the one I did for athenut.