I am sure I am missing something.
Huh Mesh shares devices, not really anything with apps, but you could share a triggering device from one hub to the other (even if it's a virtual one you create just for this purpose). Alternatively, you don't need Hub Mesh or any device sharing at all; you could also use a local (or cloud) endpoint trigger on the rule and hit that from the other hub.
That being said, Rule Machine does have an API, and Hub Mesh being able to access that and expose the ability to run rules from another hub does sound like a cool feature request.
Thank you for figuring out what I was trying to say!
And stating it so eloquently.
Ummmmmmmmm, what is this endpoint you refer to?
Understand the concept, got no clue as to how to Implement.
Any pointers, or point in the right direction would be gratefully accepted.
It's a trigger you can create on a rule. So instead of (or in addition to) a location or device event, you can do an HTTP GET on that URL, and that will trigger the rule too. When you create this trigger, you'll see The URL to use.