The one thing I wanted to add in addition to that video update was the foundation notes from November where you can see some internal discussion about rising costs.
If you dig into previous llvm foundation meeting notes, you might find that there was some discussion about what that might look like. We talked about this idea of having different kind of event tiers, like what would we want from a local event organizing team in, say, India, to commit to in order for us to bless them hosting a “Developer Day”.