{
  description = "OCaml nix-flake devshell.";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
  };

  outputs =
    { self, nixpkgs, ... }:
    let
      system = "x86_64-linux";
    in
    {
      devShells."${system}".default =
        let
          pkgs = import nixpkgs {
            inherit system;
          };
        in
        pkgs.mkShell {
          packages =
            with pkgs;
            with ocamlPackages;
            [
              findlib
              ocaml
              ocaml-lsp
              ocamlformat
              dune_3
            ];
        };
    };
}