Add musing about implementation that didn't work

## PyGame doesn't want to talk to the Framebuffer

This does not work:

```python

#!/bin/env python3

import os

import pygame

os.environ["SDL_FBDEV"] = "/dev/fb0"

os.environ["SDL_VIDEODRIVER"] = "directfb"

screen = pygame.display.set_mode()

print(screen)  # This does not show the dimensions of my small extra screen. Feels like it writes to HDMI.

```

Which is sad, because I think it should work.