Build script that assembles the overlay tarball from the `overlay/` directory. It demonstrates a meticulous approach to preserving file timestamps, setting correct permissions, and using `busybox tar` with GNU extensions. The pattern of copying files into a temporary directory, adjusting ownership and modes, then creating a reproducible archive is reusable for any Alpine apkovl creation or similar packaging tasks.

The main bootstrap script that runs at boot. It implements an idempotent setup cycle: preserve existing config files, temporarily install packages (openssh, wpa_supplicant), configure networking, start SSH, optionally run an unattended script, then restore original configs and remove temporary packages. The pattern of 'install, use, then cleanly revert' is a solid example for any bootstrapping or provisioning context. Also includes USB gadget configuration and version check logic.

Example of a fully automated diskless Alpine installation using the `setup-alpine` command with a pre-built answer file. It demonstrates parameterization, answer file creation with heredocs, and post-install customization (importing interfaces, wifi config, SSH keys, user setup). This pattern is directly reusable for any automated Alpine deployment, with clear variable substitution and structured steps.

OpenRC init script that runs the bootstrap script in background. It shows careful dependency ordering with `depend()`: using `need`, `want`, `before`, and `after` to ensure correct sequencing with respect to networking, device settling, and other services. This serves as a well-documented template for writing robust OpenRC services, especially for early boot scenarios.