Support safe async looping

[oubiwann]

This will block any Erlang integration ...

Need to see if VCV Rack offers anything of this sort.

[oubiwann]

Maybe Seastar? (of ScyllaDB fame):

• https://github.com/scylladb/seastar
• https://github.com/scylladb/seastar/blob/master/doc/mini-tutorial.md
• https://github.com/scylladb/seastar/blob/master/doc/tutorial.md
• https://docs.seastar.io/master/index.html