"My compost toilet with the pee-diverter is build and installed by myself somewhere in a shed in France. It works incredible good. Tip: if you don't use a ventilator, during hot summers you can get condensation water on the toilet seat. Bleh.. You can avoid condensation by giving some space between seat and the lid. I didn't use screws for getting the pee diverter in place. Now I can easily clean up the whole toilet after the summer.
The bottom of the wooden-box is also removable in case of accidents."