Pulse beef jerky in a food processor until finely ground. Working in batches, place 1-1/2 pounds ribs in a 6-qt. electric pressure cooker; top with half the jerky, 2 cans beans, 2 cups broth, 1/2 cup onion, 3 bacon strips, 2 tsp. garlic and 1/2 teaspoon red pepper flakes. Lock lid; close pressure-release valve. Adjust to pressure-cook on high for 40 minutes., Allow pressure to naturally release for 10 minutes; quick-release any remaining pressure. Remove pork mixture from pressure cooker; make second batch by adding remaining ingredients to cooker. Repeat previous procedure. , When cool enough to handle, remove meat from bones; discard bones. Shred meat with 2 forks; return to pressure cooker. Select saute setting and adjust for medium heat; heat through. Strain pork mixture; discard juices. Serve with chips and toppings as desired.