Xvfb's bundled libGLdispatch is hardcoded to look for DRI drivers under
/usr/lib64/dri (the AlmaLinux 8 layout). On Debian/Ubuntu they live in
/usr/lib/x86_64-linux-gnu/dri, so the GL provider fails to load and the
server brings up without the GLX extension — which silently breaks any
GLX client (raylib/GLFW). Set LIBGL_DRIVERS_PATH from the wrapper to a
list of standard distro paths so the host's swrast driver is found.
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
