This is just a personal preference, of course, do whatever you are most
comfortable with. But I THINK that using npm will only get you version
0.9.7, which is way outdated at this point. If I were you, I would suggest
installing Moonshine IDE. They have a very simple button click to download
the nightly 0.9.8 version, and then you can point whatever IDE you are using
to the SDK that it downloads. I find it to be the easiest and most straight
forward approach to stay on top of Royale on a regular basis.