น้ำบูดูและข้าวยำปักษ์ใต้ Nam Bu Du and Kao Yam (Rice Salad and Southern Fish Sauce)

I am working on making KaoYam with Nam Bu Du a dish from the south of Thailand, really from Malaysia. I am going to at least start with the recipe on this page.
She Simmers Thai Cooking KaoYam
I have been told by an old friend HS9DEK with a glorious voice and welcoming warm personality that I should use Thai Bu Du sauce. I have not spoken with him for most of a year. Catching him online was great.