See https://www.chezmoi.io/docs/install/ for installation instructions.
Then install the dotfiles with:
$ chezmoi init anthonyroussel
The ~/.config/chezmoi/chezmoi.toml
file contains machine-specific confguration.
Fill this file with the following informations:
[data.git]
name = "Anthony Roussel"
email = "[email protected]"
signingkey = "C3BD099FC6799EF8BAB606EF69661D2F99BE26B6"
$ chezmoi apply