nix-config/nixos/floki/disks.nix

{ config, disks ? [ "/dev/nvme0n1" ], ... }:
let
  hostname = config.networking.hostName;
in
{
  disko.devices = {
    disk = {
      nvme = {
        type = "disk";
        device = builtins.elementAt disks 0;
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              size = "512M";
              type = "EF00";
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/boot";
                mountOptions = [ "defaults" ];
              };
            };
            luks = {
              size = "100%";
              content = {
                type = "luks";
                name = "${hostname}_crypt";
                extraOpenArgs = [ "--allow-discards" ];
                # This file contains the key for interactive login which must be
                # the secret without a trailing newline.
                passwordFile = config.sops.secrets.luks-password.path;
                content = {
                  type = "btrfs";
                  extraArgs = [ "-f" ];
                  subvolumes = {
                    "root" = {
                      mountpoint = "/";
                      mountOptions = [ "compress=zstd" ];
                    };
                    "home" = {
                      mountpoint = "/home";
                      mountOptions = [ "compress=zstd" ];
                    };
                    "nix" = {
                      mountpoint = "/nix";
                      mountOptions = [ "compress=zstd" "noatime" ];
                    };
                    "persist" = {
                      mountpoint = "/persist";
                      mountOptions = [ "compress=zstd" ];
                    };
                    "log" = {
                      mountpoint = "/var/log";
                      mountOptions = [ "compress=zstd" "noatime" ];
                    };
                  };
                };
              };
            };
          };
        };
      };
    };
  };

  fileSystems."/persist".neededForBoot = true;
}