Build more flavors by adding small amounts (depending on how strong the flavor is, from 1/2 teaspoon to a tablespoon):
It’s perfectly fine to use all apple cider vinegar or all rice vinegar. In fact, use your favorite vinegar. I mix them because rice vinegar is a bit less acidic than apple cider vinegar.
Find it online: https://www.livebest.info/vinaigrette/