This is a guide for Scala and Java development on Windows, using Windows Subsystem for Linux. This is not complete, but is intended to be as step by step as possible.
Sadly, much of this pertains to Git, GPG, SSH, and Windows all not working, rather than [Windows Subsystem for Linux]. There is no unified command line experience for native Windows still -- instead, there's a bunch of different conflicting programs which all bring along their own environment and need to be told about each other.
Read the entire Decent Security guide, and follow the instructions, especially: