[dsrw]

With the '--debugger:native' flag, the Nim debugging experience isn't too bad. Not on the level of Java or C#, but you can set breakpoints, step in/over/out of code and inspect or watch variables without having to look at C code. There are some issues with type visualization (to see the contents of a string you have to evaluate something like '(char*)variable->data') but Nim ships with a gdb plugin that should help (I haven't actually tried it).

It could definitely be better, and hopefully some day it will be, but I use Nim in a debugger quite frequently and it usually works out pretty well.

[no_time]

It was roughly 3-4 years ago the last time I tried it. Happy to hear they made good progress since then.