in reply to
How do I make a random shuffle deterministic?
If your application relies on something random, provide your own random number generator. And do not consider using /dev/random as a source of random numbers for any game. Using /dev/random as a means of finding a seed for a random number generator is fine. As long as your program only requires one seed. There are lots of fast, not great random number generators out there. Use on of those for your game.
I think the UUID will provide you the seed you want. There are Perl means of generating UUIDs that come from CGI requests and others.