Also check out the Homesh app set.
It’s a controller app and a satellite app, both can be installed on both Homeys, to be able to control a Homey from the other one.
You can start Homey1 flows from Homey2 for example, or vice versa.
Example
Homey2 as Controller
Homey1 as Sat
With local webhooks you can do similar controlling
