In a large mixing bowl, whisk together the almond flour, tapioca starch, and salt.
Add the eggs and olive oil, and mix until well combined.
Work the dough with a wooden spoon until it becomes firm, then knead the dough with your hands until it is pliable. If the dough seems too dry, add water, one tablespoon at a time and continue mixing.
Divide the dough into two equal parts.
Roll out one-half of the dough onto a well-floured surface. Using a rolling pin or pasta machine, continue rolling the dough until it is even and very thin.
Use a pasta cutter or sharp knife to slice the dough into ¼ inch in width for fettucini, or into your preferred shape.
Repeat with the second half of the dough.
Bring a large pot of water to a boil. Add the fettucini and cook it for 2-3 minutes or until the fettucini noodles float to the surface. Drain and serve as desired.