Add the fruit to a serving bowl or dish (or oven-safe dish if baking). Top with cinnamon and maple syrup (for sweetness, optional) and toss to combine.
To a food processor or blender add desiccated (or shredded) coconut, almond flour, cinnamon, salt, pecans, and dates and pulse until a loose meal is achieved, being careful not to overblend.
For added richness / sweetness, add maple syrup and coconut butter and pulse again to combine (optional). This will also help the crumble stick together better. If it looks or feels too dry, add more dates (or maple syrup) and pulse.
Taste and adjust flavor as needed, adding more dates or maple syrup for sweetness, cinnamon for spice, or salt to taste.
Enjoy raw or bake. Before baking, drizzle with melted coconut oil (optional), then bake for 20-28 minutes at 325 F (162 C) or until fruit is tender and the topping is golden brown (being careful not to burn). Adjust cook time to desired toastiness.
*Nutrition information is a rough estimate calculated with 2 cups peaches, 1 cup blackberries, the lesser amount of dates, and without optional ingredients.