Remove the skin and the hard middle stem from the pineapple, dice the pulp. Core the peppers and cut into small pieces as well. Clean the spring onions, rinse and cut into fine rings. Rinse blueberries.
For the marinade, mix agave syrup with salt and pepper and beat in the oil. Acid is not necessary, as the pineapples available here still contain a relatively high amount of fruit acid.
Mix the marinade with the remaining ingredients, season to taste.