Calling another board

Coming soon

This isn't here yet. It's listed so you know it's planned.

A program on one board calls functions that a program on another board offers, as if they were its own.

The board that offers them declares a service: a trait listing what it can do. A caller reaches it through a connector, which says where the service is and what the caller is allowed to do with it, so a board only ever does what it has been granted.