Vault Dweller's memoirs

The Vault Dweller's memoirs are the introduction of the Fallout 2 manual. Written by the Vault Dweller himself, they are an account of his history from when he left Vault 13 up until he founded Arroyo. As it stands, it is the only information about the canonical outcome of Fallout, outside of a few references in the sequels themselves.

Behind the scenes
The song mentioned in the line, "But as the song goes, I'll do it my way," is My Way, written by Paul Anka and made famous by Frank Sinatra.