Ortus Buddy is a Chrome extension that allows users to engage in interactive video viewing by asking questions and receiving relevant answers about the video without pausing or switching tabs. It also provides high-quality summaries of the key points in the video and allows users to copy key insights, references, and resources to Notion for future reference. Supported channels include Huberman Lab, Lex Fridman, Y Combinator, and The AI Epiphany. A Discord community is available for users to ask questions and provide feedback.