I stumbled across BEAMJIT and haven’t found much information on the net about recent progress.
I have found the “home” of BEAMJIT: BEAMJIT: Exploration and Implementation of JIT (Just In Time) Compilation for Erlang and a discussion on hacker news https://news.ycombinator.com/item?id=14749227
I do not understand much about JIT, but I grasped that the lack of a JIT on BEAM has some downsides for erlang/elixir. For example it is discussed here: MMOG Server-Side. Programming Languages