A while ago there was a contest to develop a plugin for a Continuous Delivery system called Go.
I decided to "have a go," and my product was judged to be the best suited to the criteria of the competition.
When I was first contemplating producing something a colleague suggested that I do something with Docker because that was the hot technology at the time. Instead I opted for something that I believed would benefit my team in our use of Cloud Foundry.
Rather than going for the obvious - automating deployment to Cloud Foundry - I chose to give developers a system which could alert their CI pipeline when an app has been re-deployed.
Github doesn't seem to give statistics on downloads, so I find myself a little frustrated at not being able to tell how many people are actually making use of my first serious foray into open source software.