Due to changes in several ps commands using ps option -o done for alpine compatibility in #556, I yet found that x11docker now has issues in Cygwin/X. Likely in MSYS2, too.

I consider to drop MSYS2 and Cygwin/X support.
Is there still a need for this?
Overall, WSL1 and WSL2 are more useful and recent possibilities for development, I assume.

@eine, are you still using MSYS2 with x11docker?