simple flux like reactive architecture in plain linux console

every system will listen to a multicast socket
will recieve a action and ip:port
with observer pattern concept, the responding system will remotely connect to the action sender and get information it need
update itself and emit more action

because console app are not async, the front end cant work that way
unless I use thread
or two app, in tmuxed screen, one observer, one emitter... can be easy

xmlrpc work, maybe I can use it simply