Has anyone gotten a Debugger to work?

Hey guys, how would I go about hooking up a debugger with HALion 6?
The way described in the ZeroBrane manual to debug embedded applications doesn’t seem to work for HALion because it (H6) doesn’t support the io library. So while ideally I’d like to use the ZeroBrane Debugger if that’s not an option I’m fine with hearing what working alternatives exist. I saw that someone asked a similar question like a year ago but never got an answer, but I have a hard time imagining that I’m the only one interested in properly debugging code?