I'm running it on MacOS. On Windows I'm able to load a mod (Doggy Adventures), though I can't tell yet if it is actually working or not as I've not seen anything new in the back alley.
Also, I seem to be unable to complete "Perform prostitution 3 times."
When I try to add a new mod file it just opens a small subwindow with the title Add a Mod, which only contains a text field asking for a URL which I can't even copy paste into. How do I actually add mods?