{
  description = "Rust Spellbook";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-22.05";
    rust-overlay.url = "github:oxalica/rust-overlay";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
  flake-utils.lib.eachDefaultSystem (system:
      let
        version = builtins.string 0 8 self.lastModifiedDate;
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
        rust = pkgs.rust-bin.nightly.latest.default.override {
          extensions = [ "rust-src" ];
        };
        avr = pkgs.pkgsCross.avr.buildPackages;
      in {

        devShells.default = pkgs.mkShell {
          name = "rust-avr";
          buildInputs = [
            avr.gcc
            avr.avrdude
            rust
          ];
        };
      }
    );
}