dotfiles/curacao/disko.nix

{ pkgs, lib, config, ... }:
# TODO Find a way to use keys in filesystem
# TODO Not relatime everywhere, thank you
# TODO Default options
let
  btrfs_args_hdd = [
    "rw"
    "relatime"
    "compress=zstd:3"
    "space_cache"
  ];
  btrfs_args_ssd = btrfs_args_hdd ++ [ "ssd" ];
  passwordFile = "/tmp/dotfiles_${config.networking.hostName}_password";
in
{
  boot.loader.efi.efiSysMountPoint = config.disko.devices.disk.razmo.content.partitions.esp.content.mountpoint;
  disko.devices = {
    disk = {
      razmo = {
        type = "disk";
        device = "/dev/disk/by-id/ata-ST1000LM048-2E7172_WKP8925H";
        content = {
          type = "gpt";
          partitions = {
            swap = {
              priority = 10;
              start = "2048";
              size = "6G";
              content = {
                type = "swap";
                randomEncryption = true;
                # TODO NixOS documentation says not to use this with
                # hibernation, as it can't set the partition where the
                # hibernation image is saved. That's what I'm doing with Arch,
                # but I'm setting resume=, should test if it actually works?
                # Untranslated options from /etc/crypttab: swap,cipher=aes-xts-plain64,size=256
              };
            };
            nixosboot = {
              priority = 15;
              size = "2G";
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/boot";
              };
            };
            esp = {
              priority = 20;
              size = "128M";
              type = "EF00"; # EFI system partition
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/efi";
                mountOptions = [
                  "rw"
                  "relatime"
                  "fmask=0022"
                  "dmask=0022"
                  "codepage=437"
                  "iocharset=iso8859-1"
                  "shortname=mixed"
                  "utf8"
                  "errors=remount-ro"
                  "noauto"
                ];
              };
            };
            boot = {
              priority = 30;
              size = "128M";
              content = {
                type = "luks";
                name = "boot";
                extraFormatArgs = [ "--type luks1" ];
                passwordFile = passwordFile;
                settings = {
                  # keyFile = "/etc/keys/boot";
                };
                content = {
                  type = "filesystem";
                  format = "ext2";
                  mountpoint = "/mnt/old/boot";
                  mountOptions = [
                    "rw"
                    "relatime"
                    # "stripe=4" # For some reason doesn't work on NixOS
                  ];
                };
              };
            };
            main = {
              priority = 40;
              content = {
                type = "luks";
                name = "razmo";
                passwordFile = passwordFile;
                settings = {
                  # keyFile = "/etc/keys/razmo";
                };
                content = {
                  type = "btrfs";
                  # extraArgs = [ "-f" ];
                  mountpoint = "/mnt/razmo";
                  mountOptions = btrfs_args_hdd;
                  subvolumes = {
                    "home.razmo" = {
                      mountpoint = "/home.heavy";
                      mountOptions = btrfs_args_hdd;
                    };
                  };
                };
              };
            };
          };
        };
      };
      rapido = {
        type = "disk";
        device = "/dev/disk/by-id/nvme-GIGABYTE_GP-GSM2NE3256GNTD_SN204508906665";
        content = {
          type = "gpt";
          partitions = {
            swap = {
              priority = 10;
              start = "2048";
              size = "8G";
              type = "8200"; # Linux swap
              content = {
                type = "luks";
                name = "rapswap";
                passwordFile = passwordFile;
                settings = {
                  # keyFile = "/etc/keys/rapswap";
                  allowDiscards = true;
                };
                content = {
                  type = "swap";
                  resumeDevice = true;
                  # Untranslated options from /etc/fstab: defaults,pri=100
                };
              };
            };
            main = {
              priority = 20;
              content = {
                type = "luks";
                name = "rapido";
                initrdUnlock = true;
                passwordFile = passwordFile;
                settings = {
                  # keyFile = "/etc/keys/rapido";
                  allowDiscards = true;
                };
                content = {
                  type = "btrfs";
                  # extraArgs = [ "-f" ];
                  mountpoint = "/mnt/rapido";
                  mountOptions = btrfs_args_ssd;
                  subvolumes = {
                    # Should be temporary, to make sure we can revert to Arch anytime
                    "home.nixos" = {
                      mountpoint = "/home";
                      mountOptions = btrfs_args_ssd;
                    };
                    "home.rapido" = {
                      mountpoint = "/mnt/old/home";
                      mountOptions = btrfs_args_ssd;
                    };
                    nix = {
                      mountpoint = "/nix";
                      mountOptions = btrfs_args_ssd;
                    };
                    nixos = {
                      mountpoint = "/";
                    };
                  };
                };
              };
            };
          };
        };
      };
    };
  };
  services.btrfs.autoScrub = {
    enable = true;
    fileSystems = [ "/mnt/razmo" "/mnt/rapido" ];
    # TODO Should be generable from disko config, right?
  };
}