Bring a large pot of salted water to a boil and cook the linguine according to package directions until al dente.
Reserve 2 tablespoons of the pasta cooking water, then drain the noodles and set them aside.
In a large skillet over medium heat, melt the ghee and combine it with the extra virgin olive oil.
Add the minced garlic and red pepper flakes to the skillet, sautéing for about 1 minute until the garlic is fragrant but not browned.
Increase the heat to medium-high and add the shrimp in a single layer, seasoning with the sea salt and black pepper.
Cook the shrimp for 2 minutes per side until they turn pink and opaque, being careful not to overcook.
Stir in the lemon juice, lemon zest, and the reserved pasta water to create a light, silky sauce.
Add the cooked linguine and fresh parsley to the skillet, tossing everything together until the pasta is well-coated.
Serve immediately while hot, garnished with extra parsley if desired.