{
  description = "Flake for librtti";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    xbuild.url = "github:shen390s/my-nix-channel?ref=master";
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
      xbuild,
    }:
    let
      supportedSystems = [ "x86_64-linux" ];
    in
    flake-utils.lib.eachSystem supportedSystems (
      system:
      let
        mypkgs = xbuild.packages.${system};
        overlays = [
          (final: prev: mypkgs // prev)
        ];
        pkgs = import nixpkgs { inherit overlays system; };
        xpkgs = import ./nixSupport/default.nix {
          inherit pkgs;
        };
      in
      rec {
        packages = pkgs // xpkgs;
        defaultPackage = xpkgs.librtti_debug;
        devShells.default = pkgs.mkShell {
          nativeBuildInputs = xpkgs.librtti.nativeBuildInputs;
        };

        devShell = self.devShells.${system}.default;
      }
    );
}