All the Transient libraries
Maybe you would like to take a look at the transient. It provides a transient cloud monad which supports distributed computing with a RPC style. It also has good support for streaming if I remember correctly.
Haskell gRPC support
Whoops, forgot to give the ticket link. Maybe its what you were thinking of: https://github.com/awakesecurity/gRPC-haskell/issues/38
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