Windows S mode currently *NOT* supported.
The Sourcecode can be found at: https://github.com/agowa338/WSL-DistroLauncher-Alpine
This app runs through these steps when it is first launched:
1. Downloads the official Alpine Release from the official website (tar.gz)
2. Checks it's sha256 checksum
3. Let the windows api extract the tar.gz
4. Change permissions for / to 755 (non recursive)
5. Install some pre-requirements for better wsl integration
6. Create a user account
7. Drop the user into the Alpine Userland