Yargs be a node.js library fer hearties tryin' ter parse optstrings. With yargs, ye be havin' a map that leads straight to yer treasure! Treasure of course, being a simple option hash. UPDATE: Yargs ...

Hmm, I think this might have something to do with yarn more than yargs. I tried installing yargs through npm and it worked just fine. I'm looking through the yarn issues to see if this is reported ...