I have just pushed two packages to hackage: 1. reflex-basic-host-0.2.0.1[1], a reflex host library for backend work, and 2. reflex-backend-socket-0.2.0.0[2] a reflex-flavoured wrapper around TCP sockets. The most important changes to reflex-basic-host are: * Hosts no longer needlessly fork a thread, meaning that it is safe to call native code which expects all library calls to come from a common thread; and * Each host runs in a separate Reflex timeline, which makes it possible to run multiple Reflex hosts in parallel. There is an example[3] on GitHub demonstrating two hosts passing messages to each other. I hope people find it useful. GitHub issues and PRs welcome[4, 5]. Best, -- Jack [1] https://hackage.haskell.org/package/reflex-basic-host-0.2.0.1 [2] https://hackage.haskell.org/package/reflex-backend-socket-0.2.0.0 [3] https://github.com/qfpl/reflex-basic-host/blob/master/example/Multithread.hs [4] https://github.com/qfpl/reflex-basic-host [5] https://github.com/qfpl/reflex-backend-socket