Question: Can the contract language in byteball handle crosschain atomic swaps?
Bitcoin's lightning network Atomic Swaps are working now on Bitcoin Cash, Litecoin,
Decred, possibly Vertcoin, Particl, and there are different types of atomic swaps (not requiring Lightning) for other networks: Komodo, ETH, ETC, maybe Waves, Steem / Bitshares and others I would expect?
Atomic swaps can be done on Byteball. It is one of the many features.