{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
  };
  outputs = {
    nixpkgs,
    self,
    ...
  }: let
    system = "x86_64-linux";
    pkgs = nixpkgs.legacyPackages.${system};
  in {
    packages.${system}.default = pkgs.callPackage ./package.nix {};
    devShells.${system}.default = pkgs.mkShell {
      inputsFrom = [self.packages.${system}.default];
    };
  };
}