NixOS-Config/hosts/firefly/disko/default.nix

{ disko, ... }:
{
  imports = [
    disko.nixosModules.disko
  ];

  disko.devices = {
    disk = {
      main = {
        type = "disk";
        device = "/dev/nvme0n1";
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              size = "2G";
              type = "EF00";
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/boot";
                mountOptions = [ "umask=0077" ];
              };
            };
            luks = {
              size = "100%";
              content = {
                type = "luks";
                name = "crypt-nvme";
                passwordFile = "/tmp/secret.key";
                content = {
                  type = "lvm_pv";
                  vg = "nixos";
                };
              };
            };
          };
        };
      };
    };

    lvm_vg = {
      nixos = {
        type = "lvm_vg";
        lvs = {
          root = {
            size = "100%";
            content = {
              type = "zfs";
	      pool = "zroot";
            };
          };
          swap = {
            size = "8G";
            content = {
              type = "swap";
              discardPolicy = "both";
            };
          };
        };
      };
    };

    zpool = {
      zroot = {
        type = "zpool";
        mode = "single";
        options.cachefile = "none";
        datasets = {
          root = {
            type = "zfs_fs";
            mountpoint = "/";
            options."com.sun:auto-snapshot" = "false";
          };
          prev = {
            type = "zfs_fs";
            mountpoint = "/prev";
            options."com.sun:auto-snapshot" = "false";
          };
          nix = {
            type = "zfs_fs";
            mountpoint = "/nix";
            options."com.sun:auto-snapshot" = "false";
          };

          # Impermanence
          persist = {
            type = "zfs_fs";
            mountpoint = "/persist";
          };
          jimbo = {
            type = "zfs_fs";
            mountpoint = "/persist/home/jimbo";
          };
        };
      };
    };
  };

  # Needed for impermanence
  fileSystems = {
    "/persist".neededForBoot = true;
    "/persist/home/jimbo".neededForBoot = true;
  };
}