how to feed stdin to external process and redirect stdout ?
i'm new to Owlkettle but i managed to compile most of your examples into a GUI.
i also have some experience programming Nim, but can't succeed redirecting / catching stdout.
i'm trying to interact with a chess engine binary, but the question is general : how to fill a text widget with such data ?

i found forum entries like : 

**Redirect stdout for certain execution**
https://forum.nim-lang.org/t/6909

..but i can't make those code parts work - can anyone give some basic code, or point me to a working example ?