{
  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
  outputs = { nixpkgs, self }:
    let eachSystem = f: nixpkgs.lib.genAttrs
      nixpkgs.lib.systems.flakeExposed
      (s: f nixpkgs.legacyPackages.${s});
    in {
      packages = eachSystem (pkgs:
        import ./all-packages.nix { inherit pkgs; });
    };
}