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nix/images/sd-image-aarch64.nix

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Nix

# see <https://nixos.wiki/wiki/NixOS_on_ARM#Build_your_own_image_natively>
# see <https://nixos.wiki/wiki/NixOS_on_ARM/Orange_Pi_Zero2_H616>
# ```
# nix build .#images.sd-image-aarch64
# nix-shell -p zstd --run "zstdcat result/sd-image/*.img.zst | sudo dd of=/dev/sdX bs=4M status=progress conv=fsync"
# # add u-boot bootloader (e.g. for Orange Pi Zero2 H616)
# sudo dd if=~/dl/u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8
# ```
let
username = "h";
in
{
imports = [
../modules/ssh/hardened-openssh.nix
];
ssh.username = username;
ssh.authorizedHosts = [
"andromache"
"astyanax"
];
nix.settings.experimental-features = [
"nix-command"
"flakes"
];
users.users = {
root.initialPassword = "nixos";
${username} = {
isNormalUser = true;
extraGroups = [ "wheel" ];
initialPassword = "nixos";
};
};
security.sudo.wheelNeedsPassword = false;
services.openssh = {
enable = true;
harden = true;
};
# sdImage.postBuildCommands =
# let
# bootloaderPackage = pkgs.ubootOrangePiZero2;
# bootloaderSubpath = "/u-boot-sunxi-with-spl.bin";
# in
# ''
# dd if=${bootloaderPackage}${bootloaderSubpath} of=$img \
# bs=8 seek=1024 \
# conv=notrunc
# '';
system.stateVersion = "26.05";
}