@jlaw one of the reasons why we start the year NOT programming is because once we get to programming, some students have some prior experiences that can make other students feel inferior or “less good” than other students. This gap might be exasperated by students who are working at home remotely who might have families who can help them. That would be one reason to start with Unit 1 instead of Unit 3 this fall.
It looks like you have already found the modifications for virtual and socially-distanced classrooms, but you might want to check out this webinar (linked in the forum post) which talks about HOW to use the resources.