In this talk we'll dive into the challenge of going fully FOSS. We'd like to introduce you to the principles behind our decision to choose FOSS. We'll explain the why and how, focusing on ethics as well as our tech stack. We'll share what daily trials and tribulations we had to overcome, how our organization coped with these changes, and what our day to day work now looks like. We'll give an honest review of the cost of choosing FOSS over proprietary software. We'll also detail our migration experience and talk about our efforts to build a global network of other non-profits using FOSS. Finally we'd like to talk about our relationship with the FOSS community. Our goal of sharing our FOSS adventure is to show other organizations that it is important and possible to choose ethical IT alternatives.