dominicrume/cantor8_kya_rails: step-1-mandate/daml/KyaInbound.daml

Daml contract source - dominicrume/cantor8_kya_rails/step-1-mandate/daml/KyaInbound.daml ```daml -- KyaInbound: the reverse leg. The customer has naira and wants crypto. -- -- The mirror of KyaCycle, and the more dangerous direction, for one reason -- that has nothing to do with cryptography: a nair