Ah, well their donation link is on their website, under the “About Us” section. They just use buymeacoffee: https://buymeacoffee.com/isitfromcanada, if you want to contribute.

I recently learned about this black-owned bookstore in Toronto, and their website has a filter for Canadian authors:
https://adifferentbooklist.com/browse/filter/b/canada/v/popularity