Via the FFI declarations you manually wrote to your favorite graphing library that exports a C API? All major Common Lisp implementations have threading built i

Via the FFI declarations you manually wrote to your favorite graphing library that exports a C API? All major Common Lisp implementations have threading built in, and unlike Python performance is excellent without dropping to C. As an example, I recently wrote a GLFW backed program with the GPU boilerplate in C++ and all the high level logic in Lisp. I could have done the entire thing in Lisp, but there was less API surface area to wrap this way.