{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    naersk = {
      url = "github:nix-community/naersk";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };
  outputs = {
    nixpkgs,
    naersk,
    rust-overlay,
    self,
    ...
  }: let
    system = "x86_64-linux";
    pkgs = nixpkgs.legacyPackages.${system};
    pkgsWithRustOverlay = import nixpkgs {
      inherit system;
      overlays = [(import rust-overlay)];
    };
  in {
    packages.${system} = {
      bootler = pkgs.callPackage ./bootler/package.nix {};
      bootle = pkgsWithRustOverlay.callPackage ./bootle/package.nix {
        naersk = naersk;
        bootler = self.packages.${system}.bootler;
      };
    };
    devShells.${system}.default = pkgs.mkShell {
      inputsFrom = [
        self.packages.${system}.bootle
        self.packages.${system}.bootler
      ];
    };
  };
}