{
  description = "Rust Tokio service example";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    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
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
        rust = pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
          extensions = [ "rust-src" ];
        });
      in
      with pkgs;
      {
        devShells.default = mkShell rec {
          buildInputs = [ rust ] ++ [
            rust-analyzer
            pkg-config
          ];
          LD_LIBRARY_PATH = "${lib.makeLibraryPath buildInputs}";
        };
      }
    );
}