{
  description = "charlotte's NixOS flake";
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";

    lix = {
      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.92.0.tar.gz";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    niri = {
      url = "github:sodiboo/niri-flake";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };
  outputs =
    { self
    , nixpkgs
    , nixpkgs-unstable
    , lix
    , niri
    , ...
    }@inputs:
    {
      nixosConfigurations = {
        runestone = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";

          specialArgs = {
            user-pkgs = self.packages."x86_64-linux";
            unstable-pkgs = nixpkgs-unstable.legacyPackages."x86_64-linux";
          };

          modules = [
            /*
              ({ config, pkgs, ... }: {
                nixpkgs.overlays = [
                  (final: prev: {
                    xdg-desktop-portal-gnome = prev.xdg-desktop-portal-gnome.overrideAttrs (oldAttrs: {
                      patches = (oldAttrs.patches or [ ]) ++ [
                        ./packages/xdg-desktop-portal-gnome/unattended.patch
                      ];
                    });
                  })
                ];
              })
            */

            lix.nixosModules.default

            niri.nixosModules.niri
            ({ ... }: {
              nixpkgs.overlays = [ niri.overlays.niri ];
            })

            (
              { ... }:
              {
                system.stateVersion = "24.05";
              }
            )

            ./profiles/common/base.nix
            ./profiles/common/locale.nix
            ./profiles/common/networking.nix
            ./profiles/common/desktop.nix

            ./profiles/runestone/hardware-configuration.nix
            ./profiles/runestone/base.nix
            ./profiles/runestone/desktop.nix
          ];
        };

        opal = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";

          specialArgs = {
            user-pkgs = self.packages."x86_64-linux";
            unstable-pkgs = nixpkgs-unstable.legacyPackages."x86_64-linux";
          };

          modules = [
            niri.nixosModules.niri
            ({ ... }: {
              nixpkgs.overlays = [ niri.overlays.niri ];
            })

            (
              { ... }:
              {
                system.stateVersion = "23.05";
              }
            )

            ./profiles/common/base.nix
            ./profiles/common/locale.nix
            ./profiles/common/networking.nix
            ./profiles/common/desktop.nix

            ./profiles/opal/hardware-configuration.nix
            ./profiles/opal/base.nix
            ./profiles/opal/software.nix
            ./profiles/runestone/desktop.nix
          ];
        };
      };

      packages = {
        x86_64-linux = import ./packages/default.nix {
          pkgs = import nixpkgs { system = "x86_64-linux"; };
        };
      };
    };
}