Thanks for the video, design looks sleek.

So coming back to the example of the text-post-only community; I thought there might be front-end validation in some simpler cases like that, but if all handled by the communi-key then how would that work? The post gets sent and then it's the communi-key's main relay that has the logic to parse the post (does it conform to spec)? And if the main relay rejects the post because it does not conform to spec then that rejection is the basis for the validation-fail notification client side?

Just trying to figure out where the actual computation happens vis a vis screening the event content against the presumably machine-readable spec.