wow already one of the features i'm loving in yarn is that it tells you which package is firing warnings about package incompatability.

warning electron-prebuilt-compile > electron-compilers > jade@1.11.0: Jade has been renamed to pug, please install the latest version of pug instead of jade

in npm, that would have just said the part after "jade@1.11.0" which was really vague and didn't really make you want to "fix" it because which npm module do you have to go into? who knows because npm (the package manager) didn't tell you.