In a medium bowl, whisk together the coconut milk, vanilla extract, and 4 tablespoons of maple syrup.
Add the lemon juice and zest and whisk again until fully combined.
Stir in the chia seeds, then set the bowl aside for about 10 minutes to let the mixture start to thicken.
Meanwhile, combine the blueberries and remaining 2 tablespoons of maple syrup in a saucepan. Cook over medium heat, stirring occasionally, until the blueberries burst and the mixture thickens slightly. It does not need to be smooth.
Once the chia mixture has thickened, whisk it once more, then divide it between serving dishes, leaving at least 1/2 inch of space at the top.
Spoon the blueberry compote over each serving. For more distinct layers, keep the compote separate and add it right before serving instead.
Cover and refrigerate for at least 4 hours, or overnight, until fully set.
Serve topped with fresh fruit, coconut flakes, granola, or extra lemon zest, if desired.