nixos-config/hosts/i15/partitions.nix

{ disks ? [ "/dev/sda" ], ... }:
let
  btrfs_options = [ "compress=zstd:3" "noatime" ];
in
{
  disk.sda = {
    type = "disk";
    device = builtins.elemAt disks 0;
    content = {
      type = "table";
      format = "gpt";
      partitions = [
        {
          type = "partition";
          name = "NIX_BOOT";
          start = "1MiB";
          end = "300MiB";
          bootable = true;
          content = {
            type = "filesystem";
            extraArgs = [ "-n" "BOOT_I15" ];
            format = "vfat";
            mountpoint = "/boot";
            # options = [ "defaults" ];
          };
        }
        {
          type = "partition";
          name = "CRYPT_I15";
          start = "300MiB";
          end = "100%";
          content = {
            type = "luks";
            name = "main";
            keyFile = "/tmp/secret.key";
            content = {
              type = "btrfs";
              extraArgs = [ "--label" "ROOT_I15" ];
              subvolumes = let mountOptions = btrfs_options; in {
                "/home" = { inherit mountOptions; };
                "/nixos" = {
                  inherit mountOptions;
                  mountpoint = "/";
                };
                "/swap" = { inherit mountOptions; };
              };
            };
          };
        }
      ];
    };
  };
}