> A year and a half of how much effort? > The project originally began with 1 full-time engineer and a small army of volunteers. We grew that team to 4 full-ti

> A year and a half of how much effort? > The project originally began with 1 full-time engineer and a small army of volunteers. We grew that team to 4 full-time engineers plus the volunteers. They had four full-time people working on upgrading Rails at some point!