Bring a large pot of salted water to a boil. Cook the pasta according to package directions until al dente. Just before draining, remove 1 cup of the pasta cooking water. Drain.
Meanwhile, heat 2 tablespoons oil in a large skillet over medium heat. Season the shrimp with salt and pepper. When the oil shimmers, add the shrimp and sear on both sides until pink, about 2-3 minutes. Remove the shrimp from the skillet.
To the same skillet, add the remaining 2 tablespoons olive oil, the zucchini, and the shallots. Season with salt and pepper and cook 5 minutes. Add the butter, garlic, thyme, and crushed red pepper flakes. Cook until fragrant, 1-2 minutes. Pour in the wine, lemon zest, and juice, and bring to a simmer. Add the shrimp and pasta, tossing to combine. If needed, thin the sauce with a little of the pasta cooking water. Remove the pasta from the heat and stir in the parsley and chives.
Divide the pasta between plates. Top with fresh herbs. Enjoy!
