Default Mesa is a bit outdated, the following environment variables should be set for a smoother experience:
```sh
export MESA_GL_VERSION_OVERRIDE=4.6
export MESA_GLSL_VERSION_OVERRIDE=460
export MESA_EXTENSION_MAX_YEAR=2025
export MESA_DEBUG=1
export MESA_VK_VERSION_OVERRIDE=1.3
# Only if nvidia/intel drm drivers cause crashes, will severely hinder performance
export LIBGL_ALWAYS_SOFTWARE=1
```
### Notes
- Modify the generated ffmpeg.make (in build dir) if using multiple threads (base system `make` doesn't use `-j4`, so change for `gmake`).
- If using OpenIndiana, due to a bug in SDL2 cmake configuration; Audio driver defaults to SunOS `<sys/audioio.h>`, which does not exist on OpenIndiana.