# disko.nix – Root-on-ZFS (rpool) + Daten-Pool (tank)
{ disks, ... }:

{
  disko.devices = {
    disk.main = {
      device = builtins.elemAt disks 0;
      type   = "disk";

      content = {
        type = "gpt";
        partitions = {
          ESP = {
            size = "512M"; type = "EF00";
            content = {
              type       = "filesystem";
              format     = "fat32";
              mountpoint = "/boot";
            };
          };
          rpool = {
            size = "60G";  type = "BF00";
            content = { type = "zfs"; pool = "rpool"; };
          };
          tank = {
            type = "BF00";
            content = { type = "zfs"; pool = "tank"; };
          };
        };
      };
    };

    zpool.rpool = {
      type    = "zpool";
      options = { ashift = "12"; autotrim = "on"; };
      datasets = {
        root = {
          type       = "zfs_fs";
          mountpoint = "/";
          options.compression = "zstd";
        };
        nix = {
          type       = "zfs_fs";
          mountpoint = "/nix";
          options.compression = "zstd";
        };
        home = {
          type       = "zfs_fs";
          mountpoint = "/home";
          options.compression = "zstd";
        };
      };
    };

    zpool.tank = {
      type    = "zpool";
      options = { ashift = "12"; autotrim = "on"; };
      datasets.media = {
        type       = "zfs_fs";
        mountpoint = "/tank";
        options.compression = "zstd";
      };
    };
  };
}