Hi, I also need js-yaml -> argparse -> underscore.string for node-istanbul. I have prepared this package (I did not see somebody else already worked on). If you are not still interested in, please let me know and I will push my changes. Thanks in advance. Leo. -- Ubuntu Member - http://launchpad.net/~l3on Home Page - http://leoiannacone.com GPG Key Id - 0xD282FC25