Bring the water to a boil in a medium-size pot with a lid. Add the rice, give it a stir then put the lid on and reduce the heat to a simmer. Cook the rice until tender, about 18 minutes. Once its ready, fluff the rice with a fork and stir in the scallions.
When the rice is about halfway done, place a large skillet over high heat with 2 turns of the pan of oil, about 2 tablespoons. While the pan is heating up, grab a small bowl and combine the hot sauce, lime juice, honey, tamari, vinegar, tomato sauce and cornstarch, stirring to dissolve the cornstarch. Set the sauce aside.
When the pan is searing hot, add in the pork and cook the meat until caramelized, 3-4 minutes. Add in the garlic, ginger, peppers and onions, and stir-fry the meat and veggies for 2 minutes more. Add in the pineapple and reserved sauce, and stir everything together. Bring the sauce to a boil and allow it to cook for 1 minute to thicken up.
Season everything with some ground black pepper and serve the sweet and sour pork over the scallion rice.