Place the flour on the work surface, make a well in the center, crack the eggs into it, add a teaspoon of oil and a pinch of salt.
Knead the dough vigorously and for a long time until it becomes smooth and elastic, then let it rest covered with a cloth for 15 minutes.
On a floured surface, roll out the dough with a rolling pin to a thickness of 2 millimeters, cut into rectangular pieces, place them on the wires of the special guitar, and pass the rolling pin over it several times to cut the pasta.
Pinch the strings with your fingers just like a guitar to detach the pasta, and obtain spaghetti-like macaroni with a square section, which you arrange to dry on the floured surface or on a cloth.
Prepare the sauce by sautéing garlic, onion and pancetta with oil in a saucepan; add wine and let it evaporate, then add olives, peeled tomatoes, parsley or basil, a little water, salt, and cook with the lid on for 1 hour over low heat.
Bring a large pot of water to a boil, salt it, cook the macaroni until al dente, drain and season with the prepared sauce, sprinkle with grated pecorino or Parmesan to taste, and serve.