Correct, but you will have to find/build the shared library. Also, as soon as the build systems support 3.8, I will add 3.8 wheels.
I tried to support all 3.xx platforms that numpy supports: https://pypi.org/project/numpy/#files
I tried to support all 3.xx platforms that numpy supports: https://pypi.org/project/numpy/#files
The resulting wheel contains the shared library (using milksnake), so there's no need for the user to install that separately.
Let me know what you think. If you're unhappy about adding Python 2 support to your library, you can make 'runs' a keyword-only argument to solve_int_matrix ;-)