[nonbirithm]

Having attempted this myself, the answer is "a lot of work." Even with the classes and bindings separated, there is still a lot of C++ code used in the binding layer, and some of the C++ code is tightly coupled to Lua data structures. If a transition to a C API were to be made, that C++ code has to be put behind a corresponding C wrapper, so basically opaque pointer types to all those classes and functions/methods have to be wrapped to fully support using LOVE as a standalone library.

I still think that a C API would be a better option than trying to fork the project to replace Lua with Squirrel or some other language, so that at least others can have a chance to write bindings for their favorite languages without having to do all the porting work again.

Here is the tracking issue: https://github.com/love2d/love/issues/1640