Jackfruit Salsa Verde Tostadas

Name: Jackfruit Salsa Verde Tostadas
Ingredients: 1 Cup Raw Cashews, soaked 2 to 4 hours; 1 teaspoon Apple Cider Vinegar; 2 Tablespoons Lemon Juice; ¾ teaspoon Sea Salt, or to taste; ¾ Cup Water; 1 Pound Tomatillos, husked and rinsed; 1-2 Jalapeños, stemmed; 1/4 White Onion, diced; 2 Garlic Cloves, minced; 1/2 Cup Cilantro, chopped; 2 Tablespoons Olive Oil; 2- 20 ounces Cans Jackfruit in brine, drained and rinsed; Salt and Pepper to taste; 8 Corn Tostadas; 3 Cups Refried Beans, warmed; Cashew Crema, optional; Avocado Slices, optional; Chopped Cilantro, optional