Honestly, I've been building voice AI agents with Ultravox AI and the help of Claude. I understand that this community is really about LiveKit and Pipecat and open source, but Ultravox is also open source. I've had a lot of success using Ultravox AI. I've had some success with LiveKit and Pipecat, but I've had the most success with Ultravox AI. I think it's undervalued and overlooked as a source for open source AI agents and building them.oh, and…Claude is king!