Cook pasta according to package instructions. Drain and save the pasta water. Dice tofu into cubes and pan fry until crispy.
In a small bowl, mix together the soy sauce, vegan oyster sauce, dark soy sauce, vegan fish sauce and coconut sugar. Set aside.
Heat 1 tbsp olive oil in a large pan or wok over medium-high heat. Add in vegetables and saute for a few minutes. Set aside.
Add 1 more tbsp olive oil and add chopped red chili and minced garlic. Stir-fry for about 30 seconds until fragrant.
Add back in vegetables, tofu, pasta and sauce. Give it a good toss until fully combined. Add pasta water if it's too dry.
Lastly, add in thai basil leaves and mix until fully cooked. Garnish with red chilies, lime wedges and chili oil (optional). Serve hot, immediately.