Active work on rhoxy has shifted to the javascript implmentation https://github.com/JoshOrndorff/jsRhoxy.
For more active rholang work in haskell, see https://github.com/tgrospic/rholang-hs
An aspiring interpreter for rholang, written in haskell.
Build with cabal new-build
and then run rhoxy examples/send.rhoc
Basically just a playground right now. There is a less-than-implemented rhocalc parser. Don't expect to do anything other than learn atm.