Pork Carnitas Slow Cooker Recipe

Name: Pork Carnitas Slow Cooker Recipe
Ingredients: 2 lbs. pork shoulder; 1 onion; 4 cloves garlic; 1 jalapeno; 1 orange; 1 lime; 2 teaspoons Mexican oregano; 1 teaspoon cumin; 1 tablespoon chipotles in adobo sauce; 2 teaspoons salt; freshly cracked pepper; olive oil; For the tacos:; 12-16 corn tortillas; 1/2 cup finely chopped onion; finely chopped cilantro; 3-4 limes; For the Salsa Verde:; 4 tomatillos; 1/2 onion; 1 garlic clove; 10-15 sprigs cilantro; 1 serrano pepper (jalapeno is fine too)