Please take this as some unsolicited friendly advice, but I don't think you'll be able to live off this project with that funding model.
GitHub sponsors is more like a tip jar than a paycheck.
This project is rather niche and your description of it is somewhat confusing. Maybe you could use the open source framework you've created to produce a paid game or app that would be easier to monetize.
This project is rather niche and your description of it is somewhat confusing. Maybe you could use the open source framework you've created to produce a paid game or app that would be easier to monetize.