Found that playlist.

If you're interested in #GitOps, the CNCF #OpenGitOps project #GitOpsCon was in Seattle last month the week after the PowerShell and DevOps summit.

They have all their videos posted to YouTube already, and here's the playlist:

https://www.youtube.com/playlist?list=PLj6h78yzYM2OyAZIMbJPOsamT2aLKZX6b