{
  description = "NixOS configuration for cesium";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
    home-manager = {
      url = "github:nix-community/home-manager/release-25.11";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nix-flatpak.url = "github:gmodena/nix-flatpak";
  };

  outputs = { self, nixpkgs, nixpkgs-unstable, home-manager, nix-flatpak }: {
    nixosConfigurations.cesium = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs = { inherit nixpkgs-unstable; };
      modules = [
        ./configuration.nix
        home-manager.nixosModules.home-manager
        nix-flatpak.nixosModules.nix-flatpak
      ];
    };
  };
}