The Open Ephys Development Archive is a Massachusetts-based nonprofit focused on enhancing access to tools and techniques for cutting-edge neuroscience research. We believe that only open-source tools provide a level of flexibility, transparency, and affordability needed to study the brain effectively. As the primary copyright holders for software such as the Open Ephys GUI, we will ensure that it remains freely available in perpetuity. We hope these tools continue to lower barriers for all labs, regardless of their level of funding or experience.