Ramps have a short season; if you can't find them, substitute with a mixture of garlic and scallions. Adjust the amount of capers to your preference; their brininess adds a lovely contrast to the other flavors. Reserve more pasta water than you think you'll need; it's great for adjusting the sauce's consistency. For a vegetarian option, omit the bacon and add a pinch of red pepper flakes for a touch of heat.