Put the pork in a pan and cover (barely) with water.  Sprinkle liberally with salt.  Cook on medium flame until the liquid is reduced to a small amount that barely covers the bottom of the pan.  Be sure to turn the pieces of pork halfway through.

Pull the pork out and shred/pull.  Return to the pan and squeeze in the juice of two limes.

Cook until the pork starts to crisp.