Preheat your oven to 350°F (175°C).
In a mixing bowl, combine the peach slices with lemon juice, maple syrup, arrowroot, cinnamon, and ginger. Toss until peaches are coated, then pour the mixture into a baking dish.
In a separate bowl, mix the flour, shredded coconut, cinnamon, and salt. Add the coconut oil and maple syrup, and mix with a fork or your hands until the mixture becomes crumbly.
Sprinkle the topping evenly over the peaches.
Bake for 30–35 minutes, or until the topping is golden brown and the peach filling is bubbling.
Let it cool for 10–15 minutes before serving.