Cool. The pot is surprisingly small. Is the sauce in it highly concentrated or something?
The ingredients are typically finely minced fatty pork with soy sauce and strong flavorings like dried mushroom, garlic, star anise, and a fermented bean sauce that's super salty. Plus other ingredients that make the taste unique to the chef or shop.
I imagine any region with a large Taiwanese or Chinese population will have a restaurant that serves it (or the chinese version gai fan).