So, this is obviously an odd edge case, but I have the pico8.exe 0.1.10c binary pointing at /bin/pico8 in cygwin (win10).

printh works perfectly fine when supplied a log file target, but other than that, I don't get any output.

I know I could watch/tailf the log file, but I think this should work!

It works with windows Command Prompt, but the linux subsystem on windows is inferior in many ways.

Please support cygwin stdout!

You can use sysinternals' DebugView to view pico-8 output:

https://www.lexaloffle.com/bbs/?tid=28057

I might as well just;

_printh = printh
printh = function(msg,file)
  _printh(msg,file or "log.txt")
end

and then tailf log.txt