{
  description = "Configuration for NAS Server";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    disko = {
      url = "github:nix-community/disko";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = {
    self,
    nixpkgs,
    ...
  } @ inputs: let
    system = "x86_64-linux";
    pkgs = import nixpkgs {inherit system;};
  in {
    formatter.${system} = pkgs.alejandra;

    nixosConfigurations = {
      server-vm = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs;};
        modules = [
          inputs.disko.nixosModules.default
          inputs.agenix.nixosModules.default
          (import ./disko.nix {
            lib = pkgs.lib;
            swap-size = "16G";
            root-disk = "/dev/vda";
            raid-disks = [
              "vdb"
              "vdc"
              "vdd"
            ];
          })
          inputs.home-manager.nixosModules.default

          ./vm-hardware-configuration.nix
          ./configuration.nix
        ];
      };

      server = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs;};
        modules = [
          inputs.disko.nixosModules.default
          inputs.agenix.nixosModules.default
          (import ./disko.nix {
            lib = pkgs.lib;
            swap-size = "128G";
            root-disk = "/dev/nvme0n1";
            raid-disks = [
              # "sda"
              # "sdb"
              # "sdc"
              # "sdd"
            ];
          })
          inputs.home-manager.nixosModules.default

          ./hardware-configuration.nix
          ./configuration.nix
        ];
      };
    };
  };
}