[$] Building an open-source battery

FOSDEM 2025 featured the usual talksabout open-source software, but, as always, the conference also offered theopportunity to discover some more exotic and less software-centrictopics. That's how I learned about the FlowBattery Research Collective (FBRC), which is building what willeventually become an open-source home battery.Daniel Fernandez Pinto represented the collective atFOSDEM with his talk "Buildingan Open-Source Battery for Stationary Storage" in the "Energy: Acceleratingthe Transition through Open Source" developer room (devroom).