There's no place like $HOME.
# Edit a tracked file (opens the SOURCE version, not the live one)
chezmoi edit ~/.zshrc
# See what would change before touching your home dir
chezmoi diff
# Apply the source state to your home directory
chezmoi apply -v
# Pull upstream changes and apply them in one step
chezmoi update -v
# Did you tweak the live file directly? Pull that change back into the source
chezmoi re-add
# cd into chezmoi dotfiles directory
chezmoi cd