I left reddit during the first big API debacle exodus and joined lemmy.ca, around that time Smorks was tired of running the site all himself so I offered my help. Otter and MP3 joined shortly after to help administer everything.
As we took things over I wasn't comfortable taking donations without a proper non-profit in place, hence Fedecan was born. Big thanks to otter for putting in most of the work around it. We used to be hosted on OVH but after a big outage I donated some beefy server grade hardware to run us on, and we're in a datacenter in Vancouver now.
Monthly bills (hosting, domain reg, non-profit related stuff) are fully paid for by donations. We have no other funding and no affiliations to any other groups. We don't take any payment for running this, all our time is volunteered.
https://lemmy.ca/post/47466646 is a bit old now but has some more data about our donations / sites / infrastructure. There's several links at the top to more details as well. We're due for another big status update post but it might take me a bit to get to.