I have subscribed to a couple projects on github (the recurring payment thing) and purchased the optional immich license. I think the immich license is a great model, and more projects should do it.
Agreed. Grayjay has something similar, though it’s not actually FOSS (it’s source-available though). I’m happy to pay for software, but donating somehow has a different feel to it and doesn’t feel as “necessary.” So yes, an optional license fee would be awesome for more projects and could encourage more people to actually pay.