This is just SDL2 built and provided as a Zig package.
All credit to Andrew Kelly, this is entirely lifted from his (forked repo)[https://github.com/andrewrk/SDL], including all changes he's made to date.
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting with README.md
Enjoy!
Sam Lantinga (slouken@libsdl.org)