A couple of months ago in a blog post Introducing Semaphore we explained what drove us to start working on
Since we launched Semaphore as private beta a month ago we have received a lot of positive feedback along with many feature requests. We saw various projects, and realized that many people need to do something in the test suite that we cannot guess. Or simply want to build a Ruby project that is not a Rails app.
Semaphore is a product of scratching our own itch. Rendered Text as a team of five people usually works on a few projects at a time. Although most of our projects are long term relationships, we take smaller projects that last two to three months. By bootstrapping applications over and over again we detected a pattern.