I would gladly invest time into some graduate course, but they require undegrad degree - and getting an undergrad CS degree after programming my whole life, stu

I would gladly invest time into some graduate course, but they require undegrad degree - and getting an undergrad CS degree after programming my whole life, studying a lot of theory and making personal hobby projects in almost every field (from OS to db to compilers to 3d renderers to ML) seems like a total waste.