{
  description = "Foo Bar Rust Project";

  nixConfig = {
    extra-substituters = [ "https://cache.m7.rs" ];
    extra-trusted-public-keys = [ "cache.m7.rs:kszZ/NSwE/TjhOcPPQ16IuUiuRSisdiIwhKZCxguaWg=" ];
  };

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";
  };

  outputs = { nixpkgs }:
    let
      forAllSystems = nixpkgs.lib.genAttrs [ "x86_64-linux" "aarch64-linux" ];
      pkgsFor = nixpkgs.legacyPackages;
    in
    rec {
      packages = forAllSystems (system: {
        default = pkgsFor.${system}.callPackage ./default.nix { };
      });

      devShells = forAllSystems (system: {
        default = pkgsFor.${system}.callPackage ./shell.nix { };
      });

      hydraJobs = packages;
    };
}