Update your user settings.json to include your dotfiles repo.
e.g.
...
"dotfiles.repository": "mqarty/dotfiles",
"dotfiles.targetPath": "~/dotfiles",
"dotfiles.installCommand": "install.sh",
...
Then, from the command pallet run "Dev Containers: Rebuild Container"... it will take a while. Once complete you'll have your dev environment and personal settings ready to go.