Very cool! Coincidentally, a group of us were just discussing this idea over lunch today. We also imagined that one could write a package manager which could link into 21.co and charge some minute amount of BTC / ETH to pull the latest version of <insert library here>. (HTTP 402: Payment Required) That pool of money would then be allocated to issues / features / etc, based on how many upvotes on Github, etc, which seems similar to what you've done.