There is a separate implementation for really constrained device use, called AtomVM.
There are many dead efforts to implement something like the BEAM or OTP within other ecosystems. Usually not as a VM.
I have seen attempts at actor systems like erlang/beam's. Scala/Akka seems to have been a success?
Share nothing, green-thread/coroutines also seem popular now a days.
C++ Actor framework is also considerably popular, and Scylladb has their own framework which I believe does something similar.