I found a couple examples that do the scrypt part with GPU in browser, but your browser has to support custom shaders, I think (I forget the details), and the version most browsers support doesn't allow this (again, my memory is sketchy about the details).
Anyway Here you go, NJ! https://github.com/borlak/cryptocoin_scrypt_stratum
On boot as it's loading players, their file descriptor ID was saved, so it loads it up and resumes talking to the socket. It also loads the ID of the server socket descriptor. No need to send information to a new process as it just loads the previous game state.
If you're curious: https://github.com/borlak/acmud/blob/7c2442dfccfc28364fc399a...
And: https://github.com/borlak/acmud/blob/7c2442dfccfc28364fc399a...