dotfiles/nixos/systems/omen/filesystems.nix

{secret, ...}: let
  nfsOptions = [
    "noauto"
    "X-mount.mkdir"
    "x-systemd.device-timeout=10"
    "timeo=14"
    "soft"
    "noatime"
    "x-systemd.after=wireguard-wg0.target"
    "x-systemd.wants=wireguard-wg0.target"
  ];

  blowholeAddress = secret.network.ips.blowhole.dns or "";
in {
  boot.zfs.requestEncryptionCredentials = [];
  systemd.services.nix-daemon.environment.TMPDIR = "/nix/tmp";

  boot.initrd.luks.devices."cryptroot-2" = {
    device = "/dev/disk/by-uuid/48e4fe52-9785-42cb-adfc-16776492944e";
    allowDiscards = true;
    crypttabExtraOpts = [
      "cipher=xchacha20\\,aes-adiantum-plain64"
    ];
  };

  fileSystems = {
    "/" = {
      device = "none";
      fsType = "tmpfs";
      options = ["defaults" "size=512M" "mode=755" "noexec"];
    };
    "/tmp" = {
      device = "none";
      fsType = "tmpfs";
      options = ["defaults" "size=512M" "mode=755"];
    };
    "/nix/persist" = {
      device = "omen-ssd/persist";
      fsType = "zfs";
      neededForBoot = true;
    };
    "/old/root" = {
      device = "omen-ssd/local/root";
      fsType = "zfs";
      neededForBoot = true;
    };
    "/old/home" = {
      device = "omen-ssd/safe/home";
      fsType = "zfs";
      neededForBoot = true;
    };
    "/nix" = {
      device = "omen-ssd/local/nix";
      fsType = "zfs";
    };
    "/home" = {
      device = "omen-ssd/ephemeral/home";
      fsType = "zfs";
      neededForBoot = true;
    };
    "/root" = {
      device = "omen-ssd/ephemeral/root";
      fsType = "zfs";
      neededForBoot = true;
    };
    "/nix/tmp" = {
      device = "omen-ssd/ephemeral/nix-tmp";
      fsType = "zfs";
      neededForBoot = true;
    };

    "/boot/1" = {
      device = "/dev/disk/by-uuid/14647e24-3421-4398-b30e-537de6472433";
      fsType = "ext4";
    };
    "/boot/1/EFI" = {
      device = "/dev/disk/by-uuid/C58B-3BF8";
      fsType = "vfat";
    };

    "/boot/2" = {
      device = "/dev/disk/by-uuid/7DB2-70BB";
      fsType = "vfat";
    };

    "/var/secrets" = {
      device = "omen-ssd/local/secrets";
      fsType = "zfs";
    };

    "/mnt/net/kyle" = {
      fsType = "nfs";
      device = "${blowholeAddress}:/mnt/kyle";
      options = nfsOptions;
    };
    "/mnt/net/cartman" = {
      fsType = "nfs";
      device = "${blowholeAddress}:/mnt/cartman";
      options = nfsOptions;
    };
    "/mnt/net/stan" = {
      fsType = "nfs";
      device = "${blowholeAddress}:/mnt/stan";
      options = nfsOptions;
    };
    "/mnt/net/getmail.d" = {
      fsType = "nfs";
      device = "${blowholeAddress}:/var/nfs/getmail/getmail.d";
      options = nfsOptions;
    };
    "/mnt/net/mail-configuration" = {
      fsType = "nfs";
      device = "${blowholeAddress}:/var/nfs/mail-configuration";
      options = nfsOptions;
    };
  };

  zfs.health = {
    enable = true;

    pools."omen-ssd" = {
      trim = {
        schedule = "Sun *-*-* 03:00:00";
      };
    };
  };
}