just so you know, this is no longer working with the latest update of open reactors
throws error:
bad argument #1 (string expected, got nil)
stack traceback:
[C]: in function 'error'
machine:631: in function 'spcall'
machine:1245: in function 'proxy'
/reactor.lua:87: in function 'main'
/reactor.lua:390: in main chunk
(...tail calls...)