{
  description = "A Nix-flake-based Rust development environment";

  inputs = {
    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1"; # unstable Nixpkgs
    fenix = {
      url = "https://flakehub.com/f/nix-community/fenix/0.1";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    { self, ... }@inputs:
    let
      supportedSystems = [
        "x86_64-linux"
        "aarch64-linux"
        "x86_64-darwin"
        "aarch64-darwin"
      ];
      forEachSupportedSystem =
        f:
        inputs.nixpkgs.lib.genAttrs supportedSystems (
          system:
          f {
            pkgs = import inputs.nixpkgs {
              inherit system;
              overlays = [
                inputs.self.overlays.default
              ];
            };
          }
        );
    in
    {
      overlays.default = final: prev: {
        rustToolchain =
          with inputs.fenix.packages.${prev.stdenv.hostPlatform.system};
          combine (
            with stable;
            [
              clippy
              rustc
              cargo
              rustfmt
              rust-src
            ]
          );
      };

      packages = forEachSupportedSystem ({ pkgs }: {
        default =
          pkgs.rustPlatform.buildRustPackage {
            pname = "my-rust-project"; # Change to your Cargo.toml [package] name if different
            version = "0.1.0";         # Change to your Cargo.toml [package] version

            src = pkgs.lib.cleanSource ./.;

            cargoLock = {
              lockFile = ./Cargo.lock;
              # If you have additional lock files (e.g., for alternative registries), add them here
            };

            nativeBuildInputs = with pkgs; [
              pkg-config
            ];

            buildInputs = with pkgs; [
              openssl
            ];

            # Optional: for faster iterative development, you can copy artifacts from cargo
            # doCheck = false; # if you want to skip tests during nix build

            meta = with pkgs.lib; {
              description = "My Rust project";
              license = licenses.mit; # Adjust as needed
              mainProgram = "whereAmI"; # Optional: name of the main binary for nix run
            };
          };
      });

      devShells = forEachSupportedSystem (
        { pkgs }:
        {
          default = pkgs.mkShell {
            packages = with pkgs; [
              rustToolchain
              openssl
              pkg-config
              cargo-deny
              cargo-edit
              cargo-watch
              rust-analyzer
            ];
            env = {
              # Required by rust-analyzer
              RUST_SRC_PATH = "${pkgs.rustToolchain}/lib/rustlib/src/rust/library";
            };
          };
        }
      );
    };
}