{
  description = "A very basic flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, flake-utils, nixpkgs }:
    flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import nixpkgs {
        inherit system;
      };
    in {
      devShell = 
      #let
        #
      #in
        pkgs.mkShell {
          buildInputs = with pkgs; [
            ocaml
            ocamlPackages.ocaml-lsp
            ocamlPackages.findlib
            ocamlformat
            ocamlPackages.ocamlformat-rpc-lib
            ocamlPackages.utop
            dune_3
            opam
            # Project deps
            ocamlPackages.ppxlib
            ocamlPackages.ppx_deriving

          ];
        };
    });
}