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

  inputs = {
    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      rust-overlay,
    }:
    let
      overlays = [
        rust-overlay.overlays.default
        (final: prev: { rustToolchain = prev.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml; })
      ];
      supportedSystems = [
        "x86_64-linux"
        "aarch64-linux"
        "x86_64-darwin"
        "aarch64-darwin"
      ];
      forEachSupportedSystem =
        f:
        nixpkgs.lib.genAttrs supportedSystems (
          system: f { pkgs = import nixpkgs { inherit overlays system; }; }
        );
    in
    {
      devShells = forEachSupportedSystem (
        { pkgs }:
        {
          default = pkgs.mkShell {
            packages = with pkgs; [
              nixfmt-rfc-style
              rustToolchain
              openssl
              pkg-config
              cargo-deny
              cargo-edit
              cargo-watch
              rust-analyzer
            ];
          };
        }
      );
    };
}