I’m not sure if what I’m looking for exists, or if it’s even possible to build.
I would like to have a central place where I can donate some monthly amount. I set up my profile and say, from my monthly donation, I want x percent to go to this project, y percent to that project, and so on. So instead of setting up some number of donations for all the projects I use and want to support, I have a single donation to support multiple projects.
Is there already a platform like this?
Well, the big issue with that is that all the projects you want to donate to will also have to be on that same platform. If any of them aren’t, you’ll still have to deal with those ones individually.
Plus the platform would require a cut to cover operating expenses.
More economical (but, yes, more work) to setup separate donations.