{
  description = "stalwart-tlsa-cloudflare service and timer";

  inputs.nixpkgs.url = "nixpkgs/nixos-25.11";

  outputs = { self, nixpkgs }:
  let
    systems = [ "x86_64-linux" "i686-linux" "aarch64-linux" ];
    forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
    # Import nixpkgs with our overlay for each system.
    nixpkgsFor = forAllSystems (system:
      import nixpkgs {
        inherit system;
        overlays = [ self.overlay ];
      }
    );
  in {
    # stalwart-tlsa-cloudflare-update service module
    nixosModule = (import ./module.nix);
  };
}