orange/rootfs.nix

{ pkgs }:

pkgs.stdenv.mkDerivation {
  name = "orange-rootfs.img.zstd";

  nativeBuildInputs = with pkgs; [ zstd ];

  buildCommand = ''
    truncate -s 512M ./rootfs.img
    zstd -T$NIX_BUILD_CORES ./rootfs.img -o $out
  '';
}