It’s always exciting to see a new compost toilet video online… I’m not alone!
It really is simple- just read Humanure Handbook by Joe Jenkins a few times and get to it. It’s a great read and he knows what he’s doing…he backs the whole book with a ton of cited research.
The only area I differ from their process is that I also add my cat’s waste to the system, too.
Jenkins doesn’t make a strong claim in his book about composting pet waste- I’m willing to take the risk. I use swheat scoop cat litter and just add it to my compost toilet buckets along with my own deposits.
I let the pile sit for 18 months (instead of 12) and use the finished compost for solely horticultural purposes.