I can’t build it on windows though for some reason.
Can someone help me out and build it and send me the omod file? cause I want to see if this simple fix solves this issue: https://issues.openmrs.org/browse/AM-178
However it goes without saying that you should spend the necessary time to make sure that you can build by yourself on your system, or switch system (perhaps consider a dual boot with a Linux distro or something?)
The good thing for you, is that if this is just JS development, you can move forward even with your build issues. For this look at the OpenMRS SDK in ‘Watching module for changes’.
My experience is the opposite, with Linux you can face other kind of problems (permissions on files for instance) that need to be addressed. And in general you must have a good command of bash. I’m not saying Windows is better of course.