[tech] Steam on Linux - Working

[John Hodge]

Hey Everyone,

I have succeeded in coaxing steam games into working on most of the 
clubroom's Linux machines.

Useful notes and caveats
- Games are stored locally in /opt/steamapps (which is kept writable by 
a cronjob running every five minutes)
- All users have a symlink in ~/.steam/steamapps and various other 
locations pointing to this path.

The following machines have games installed and are tested working
- Cockgrunter (with a nice GTX560Ti in it now, donated by myself as a 
stopgap until it's replaced - Don't throw that out please, it's working 
nice card)
- Pinball (Works quite nicely, enjoy your games)
- Porcupine (Most games run, but may not be smooth enough for nice play)

Clownfish and Cabellera are still using the nouveau driver (which 
doesn't have good game support), and hence haven't been strictly tested. 
The rest of the
machines have the official nvidia drivers installed from the mint 
repositories (so they should auto-update, and are trivially 
removable/installable, see the SOE)

This setup isn't 100% reliable - There are some users for whom the 
/opt/steamapps symlink either is missing, was removed, doesn't work, or 
steam plain
ignores  - These will get games installed to /away, so will require some 
monitoring to avoid /away filling up.

John Hodge [TPG]
UCC Wheel Member - Breaking things to fix them.