Cool, this is excellent. AOL embedded TCL interpreters attached to a listener on the network for all the services, so you could telnet in and see in memory what was going on and change config and what not. A tcl command is just a CS 1 program with argv and argc, so even pretty junior people could safely add commands. The framework was event based, no threads, so while the tcl was running nothing else was being done, so you could rearrange memory and it was cool as long as you finished before the end of the command. If would be pretty simple to add in a control port thing to Go. The advantage of TCL with its simple syntax is most commands are just cmd arg1 arg2 arg3 but if you have some general logic, you can express that as.