Which porting kit? Also, on which version of macOS are you playing? Thx!
Zip file on the website when it prompts me to .dmg or .zip
I'm on a Macbook Air that's updated to Sonoma 14.1.2
Also, you'll likely need a Book of Enlightenment for unexpected crashes, and the one that works for me is one I found from guides (I tried the mod TheDarkRacoon had, but it didn't work), and you can use it if your computer gets a bit hot and seems to be ready to crash
Link: https://steamcommunity.com/sharedfiles/filedetails/?id=2899814354
Sadly, there's no fix currently that makes no crashes happen, but to make them less frequently, you can close most applications and it'll crash WAY less often in my experience
If you're having other issues, just reply and I can probably answer your questions
Edit: The premonition mod works too, but there is bugs
Link: https://steamcommunity.com/sharedfiles/filedetails/?id=2993909687
You have to be logged into Steam to view either because Termina is marked as an adult game (And you gotta confirm you're an adult)