Ingredients:

• 1 tablespoon kosher salt
• 1 pound medium or small shrimp, peeled and deveined
• 3/4 cup lime juice (juice from 4 to 6 limes)
• 3/4 cup lemon juice (juice from 2 to 3 lemons)
• 1 cup finely chopped red onion
• 1 serrano chili, ribs and seeds removed, minced
• 1 cup chopped cilantro
• 1 cucumber, peeled diced into 1/2-inch pieces
• 1 avocado, cut into 1/2-inch chunks
• Tortilla chips, for serving