ultima/jetpure/host/parts/disko.nix

{ device ? throw, ... }: {
  # sudo nix run nixpkgs#disko -- --mode disko ./disko.nix --arg device '"/dev/sdX"'
  disko.devices.disk.main = {
    inherit device;
    type = "disk";
    content = {
      type = "gpt";
      partitions = {
        esp = {
          name = "esp";
          size = "512M";
          type = "EF00";
          content = {
            type = "filesystem";
            format = "vfat";
            mountpoint = "/boot";
            mountOptions = [ "umask=0077" "fmask=0077" "dmask=0077" ];
          };
        };
        root = {
          name = "nixos";
          size = "100%";
          content = {
            type = "btrfs";
            extraArgs = [ "-f" ];
            subvolumes = {
              "/rootfs".mountpoint = "/";
              "/home" = {
                mountpoint = "/home";
                mountOptions = [ "compress=zstd:5" ];
              };
              "/nix" = {
                mountpoint = "/nix";
                mountOptions = [ "compress=zstd:5" "noatime" ];
              };
              "/persist" = {
                mountpoint = "/persist";
                mountOptions = [ "compress=zstd:5" "noatime" ];
              };
            };
          };
        };
      };
    };
  };
  fileSystems = let
    fsType = "ext4";
    options = [ "nosuid" "nodev" "nofail" "x-gvfs-show" ];
  in {
    "/mnt/HDD" = {
      label = "BIG_BUCK";
      device = "/dev/disk/by-uuid/9290bc08-17fe-47db-a535-d4044b8c8dfb";
      inherit fsType options;
    };
    "/mnt/SSD" = {
      label = "FAST_BITCH";
      device = "/dev/disk/by-uuid/e6bc9034-95a4-43bd-b5f5-c7c1743e9f7c";
      inherit fsType options;
    };
  };
}