NixOS ISO image that automatically connects to Tailscale with auth key

Requirements

• Nix
  • Flakes & Nix command need to be enabled
  • It's recommended to use nix-installer instead of the official installer
  • This installer automatically enables flakes and nix command
• Tailscale account

Build ISO

1. Create auth key on Tailscale

2. Run

# impure option is required to read the environment variables
$ TAILSCLAE_AUTH_KEY=<your auth key> nix build --impure
$ ls ./result/iso
nixos.iso

References

• Tailscale on NixOS: A new Minecraft server in ten minutes
• nix-community/nixos-generators