Preheat oven to 350℉. Line an 8 inch springform pan with parchment paper.
In a mini food processor, pulse together the almond flour, butter and sugar until combined. Transfer crumbly mixture to the pan and spread out into an even layer crust, going up along the sides of the pan. Bake for 10 minutes or until light golden brown.
Cheesecake:
In a medium bowl, whisk together the eggs, yogurt, lime zest, lime juice until smooth. Next, add in the sugar, arrowroot flour and mix until combined. Then, transfer batter to the pan. Carefully tap the pan on your counter to remove any bubbles. Bake for 1 hour. Allow to set in pan for 30 minutes. Transfer to the fridge for an hour or overnight. Top with cool whip, powdered sugar, lime zest or lime slices.