Autologin runner

Manages console autologin only. It does not install X11, Openbox, STARTX, or touchscreen software. Modes are preflight, apply, and disable.

TTY command profile

wget -qO- https://devs-guide.github.io/debian/setup/autologin.sh | \
  env DEBIAN_AUTOLOGIN_MODE=apply \
      DEBIAN_AUTOLOGIN_ENABLE=1 \
      DEBIAN_AUTOLOGIN_USER=app \
      DEBIAN_AUTOLOGIN_TTY=tty1 \
      DEBIAN_AUTOLOGIN_ACTION=command \
      DEBIAN_AUTOLOGIN_COMMAND='/bin/bash' \
      DEBIAN_AUTOLOGIN_VALIDATION_BANNER=1 \
      bash

Variable	Purpose
`DEBIAN_AUTOLOGIN_MODE`	Uses `preflight`, `apply`, or `disable`.
`DEBIAN_AUTOLOGIN_ENABLE`	Explicitly enables or disables the TTY autologin behavior.
`DEBIAN_AUTOLOGIN_USER` / `DEBIAN_AUTOLOGIN_TTY`	Identifies the managed account and console.
`DEBIAN_AUTOLOGIN_ACTION` / `DEBIAN_AUTOLOGIN_COMMAND`	Selects the post-login action and command. Use a reviewed local executable, not an unquoted ad-hoc shell fragment.
`DEBIAN_AUTOLOGIN_VALIDATION_BANNER`	Keeps the managed validation banner visible in this example.

To remove the configuration, use the same user and TTY with DEBIAN_AUTOLOGIN_MODE=disable DEBIAN_AUTOLOGIN_ENABLE=0.

For a composed desktop/kiosk workflow, use the kiosk app runner instead of manually assuming its feature ordering.