The Complete Reference goes into much more detail.
$ neopo create myProject
$ neopo configure argon 1.5.2 myProject
$ neopo build myProject
$ neopo flash myProject
$ neopo run clean-debug myProject
Note: Specifying the project directory is optional if your current working directory is a Particle project. Tab completion can also find valid projects in the current working directory.
For example:
$ cd myProject
$ neopo build
$ neopo flash