The Low Impact camping page of our website (https://www.skabc.org/conservation/conservation/#lowimpact) has the 7 basic principles, and the PDF to which its linked elaborates on them helpfully.
Isn’t it often the case that we forget the information that we already have?
However, our own PDF recommends burning food and whatnot, and I’m not sure that’s still considered a best practice, versus a 100% pack it out approach. I always reckoned you’ve packed in a certain volume of food, so you definitely have room in your boat to pack it out again. Wrap it all up tightly in plastic and it won’t smell, then separate and compost it at home – no big deal, at least for the typical 3 – 8 day SKABC sort of trip.