I get your point. I'm not too keen on administrative overhead, either.

> Business idea: If there was a single corporate intermediatory who would handle all this sitting somewhere we could create a supply agreement with and funnel the cash through to the right people we could probably deal with it.

Isn't that exactly what Github does through its Sponsors program? I think I only handle two endpoints these days: Github Sponsors and Clojurists Together. Github works very well, and they will even fold/consolidate new sponsorships into your existing invoices as you add them over time.

I don't think "overhead" is a valid excuse anymore.