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

  outputs = {
    nixpkgs,
    flake-utils,
    rust-overlay,
    ...
  }:
    flake-utils.lib.eachDefaultSystem (
      system: let
        overlays = [(import rust-overlay)];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
        # rust = pkgs.rust-bin.stable.latest.default;
        # For nightly, replace with the following:
        rust = pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default);
      in {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            rust
            rust-analyzer
          ];
        };
      }
    );
}