For GMail, why this and not http://gmvault.org/ http://gmvault.org/? Been meaning to backup my GMail account and had this one bookmarked for ages, but never got

For GMail, why this and not http://gmvault.org/ http://gmvault.org/? Been meaning to backup my GMail account and had this one bookmarked for ages, but never got round to using it. Edit: or https://github.com/djipko/gbackup-rs/ https://github.com/djipko/gbackup-rs/ which was a more recent bookmark