I just bolted the anchors from the cable system into some ceiling studs, and then attached the lights using their mounting clips + some zip ties. It was a temporary thing that just never got updated since it works well. I thought I might need to add weights at the bottom, but the leds are heavy enough on their own.
Wall has a bunch of screws put into the studs and then the net is just spread over them. I zip tied the net in a few spots to start if off, then just wrapped the netting around the screws to pull it tight.
I've started letting it climb onto the ceiling / off the net by using some thumb tacks, but I don't think this is going to work. I'll probably put a few screws in and then run some fishing line between them.