That’s awesome. Indeed the key is to build trust and arrange a scalable setup to have more positive impact in the future.
I am into creating an app so it is possible to buy local craft beer using Bitcoin and Lightning! And want to be 100% open about finances… plan to sell the products for their cost (I partner with local stores) and charging (and advising) an extra for collaborating with the project to pay servers and the whole operation. Maybe you could do something alike. Have a website where donors can see how much cans of food you bought that month, you expenses, donation goals and how much you could cover.
Complementing that with nice pictures of the happyness you are delivering would be great!