The author introduces LiveKit, an open-source infrastructure for building real-time audio and video experiences in applications. They explain that while WebRTC provides a protocol for facilitating peer-to-peer communication, there is no free, open source, and easy-to-use infrastructure for scaling real-time communication. The author aims to fill this gap with LiveKit, which will provide developers with the ability to easily create instant, reliable, real-time connections between users. They also mention their commitment to building a high-quality platform that is robust, simple to integrate, deploy and scale, and provides detailed documentation and strong customer support. The author invites developers interested in real-time communications or WebRTC to check out LiveKit on GitHub and join their Slack community for further collaboration and support.