Yes, I am a big fan of checking in the build directory. We work on lots of little one-off apps that need to last for 5-8 years. Having the build dir in the version control makes it so much easier to fix things and update content years down the road. It insures us from things like npm (insert your package manager here) going away. Which I know sounds ridiculous, but try to re-download some essential Flash&#x2F;Actionscript library from 2009, in 2016.