Here you go: https://studiezalen.com/doneren/. That's the donation page for the organization that's making this happen. They focus primarily on education, and found out that undernourishment or the threat thereof is really detrimental for education. That's why they started this project.
Alternatively you could move to Amsterdam or Zaandam and pay your taxes. This kind of organization lives off government subsidies, donations are just an extra. Last year their total income was 2.1 million euros, although they do not specify how much of that is from donations.
Living in the south of the country (near Breda), I wouldn't be caught dead in Amsterdam and I despise the city. But this is certainly a worthy cause, so I'll gladly donate.
They have raised 250.000 to fund this supermarket. Beyond the fact that a notable newspaper reported on it (Parool) I can't vouch for it other than that link really is their donation page.
