How to debug segmentation fault memory issue??

[PMunch]

Aah of course. I can confirm that `--stackTraces:off` works, trying with 
`--threads:on` now and it seems stable so far. I guess `--threads:on` is the 
more "correct" solution, telling Nim that this is multi-threaded because SDL 
timers make it so. Of course those callbacks should also have a lock to guard 
their access to global memory, but that's a whole different issue.