Updating variables from comunications

I am working on a project where I am using several Arduinos connected by CAN bus to distribute various computation and sensing tasks.

But I'm not going to show you any code.

I have variables using several different data types.

But, I'm not going to tell you what they are.

Any suggestions on how to approach this problem?

I'd suggest that you put your hands in your pockets while talking. The handwaving adds nothing since we can't see it. Details, man!