What the heck are these wires in my switch box?

I still want to give it a go. But since I don’t have just one line hot wire, one black and one white wire w/ black tape heading towards switch #1, I’m not sure how to hook up the micro switch.

Do I add a pigtail from the hot bundle to the line terminal of the micro switch? That seems to make sense.

Seems less straightforward which wires in the box to connect to the switch terminals…