A challenge for many tech companies is delivering high-bandwidth, multimodal data — for example, simultaneous audio and video — to users in real time without interruptions. Some firms build solutions in-house, but these often require a lot of upkeep and maintenance. To ease the burden, Russ d’Sa and David Zhao created LiveKit, an open source software package for building apps that can transmit real-time audio and video. They launched the project in 2021 and soon suspected it had business potenti...