Yes, I support quite a few patreons myself, and had been thinking about creating my own- but more gaming related. The programming idea is a different one...
And I don't look at this as "crowdfunding" as much as being a patron- like the museum memberships or having a patron as an artist. Especially because you create the creation, and only at that point are the funds released. And this can be on as periodic a schedule as can be managed- but only at those periods are the funds released.