Vegan Berry Cheesecake

Name: Vegan Berry Cheesecake
Ingredients: 2 1/2 cups blanched slivered almonds, divided; 8 ounces vegan cream cheese; 1 small lemon; 1 (about 13-ounce) can unsweetened full-fat coconut milk; 1 1/4 cups granulated sugar, divided; 1 (about 9-ounce) package Biscoff cookies or vegan ginger cookies; 6 tablespoons vegan butter; 1/4 cup almond butter; 1/2 cup melted refined coconut oil, plus more for greasing; 1 tablespoon vanilla extract; 1 (1-inch) piece ginger; 1 (12-ounce) package fresh blackberries (3 cups), divided; 1/8 teaspoon kosher salt, plus more as needed