diff --git a/oplevel.ml b/oplevel.ml
index 4ca19d0..0b79529 100644
--- a/oplevel.ml
+++ b/oplevel.ml
@@ -13,125 +13,26 @@ let by_id_coerce s f =
 let do_by_id s f =
   try f (Dom_html.getElementById s) with Not_found -> ()
 
-let resize ~container ~textbox () =
-  Lwt.pause () >>= fun () ->
-  textbox##.style##.height := Js.string "auto";
-  textbox##.style##.height
-  := Js.string (Printf.sprintf "%dpx" (max 18 textbox##.scrollHeight));
-  container##.scrollTop := container##.scrollHeight;
-  Lwt.return ()
-
-let setup_storeview ~container ~textbox ~(storeview : Store.t Lwt.t) :
-    unit =
-  let storeview_container = by_id "toplevel-storeview" in
-  Lwt.async (fun _ ->
-      storeview >>= fun storeview ->
-      Firebug.console##log "setup_storeview";
-      Store.S.Tree.list storeview [] >>= fun all ->
-      ignore
-        (List.fold_left
-           (fun acc tok ->
-             match tok with
-             | step, _tree ->
-                 let a =
-                   Tyxml_js.Html.(
-                     a
-                       ~a:
-                         [
-                           a_class [ "list-group-item" ];
-                           a_onclick (fun _ ->
-                               textbox##.value :=
-                                 (Js.string acc)##trim;
-                               Lwt.async (fun () ->
-                                   resize ~container ~textbox ()
-                                   >>= fun () ->
-                                   textbox##focus;
-                                   Lwt.return_unit);
-                               true);
-                         ]
-                       [ txt step ])
-                 in
-                 Dom.appendChild storeview_container
-                   (Tyxml_js.To_dom.of_a a);
-                 "")
-           "" all);
-      Lwt.return_unit)
-
-(* TODO replace with Angstrom like httpaf *)
-let headers_of_string_list (sl : string list) : Httpaf.Headers.t =
-  Httpaf.Headers.of_list
-    (List.filter_map
-       (fun s ->
-         Firebug.console##log (F.str "headerparse: %s" s);
-         Option.map
-           (fun i ->
-             ( String.trim (String.sub s 0 i),
-               String.trim
-                 (String.sub s (i + 1) (String.length s - i - 1)) ))
-           (String.index_opt s ':'))
-       sl)
-
-let setup_workspace ~container cstore : unit Lwt.t =
-  let render ~container cstore : unit Lwt.t =
-    let module Headers = Httpaf.Headers in
-    Store.S.Tree.list cstore [] >>= fun csl ->
-    container##.innerHTML := Js.string "";
-    Lwt_list.iter_s
-      (fun (step, tree) ->
-        Firebug.console##log (F.str ".config/workspace/%s" step);
-        Store.S.Tree.get tree [] >>= fun contents ->
-        let headers =
-          headers_of_string_list (String.split_on_char '\n' contents)
-        in
-        Firebug.console##log
-          (F.str "Headers:\n%a" Headers.pp_hum headers);
-        let uri =
-          Uri.of_string
-            (Option.fold ~none:""
-               ~some:(fun s -> s)
-               (Headers.get headers "path"))
-        in
-        Dom.appendChild container
-          (Tyxml_js.To_dom.of_a
-             Tyxml_js.Html.(
-               a
-                 ~a:[ a_class [ "window" ] ]
-                 [
-                   div
-                     ~a:[ a_class [ "status" ] ]
-                     [
-                       txt
-                         (F.str "Name: %s; Path: %a" step Uri.pp_hum
-                            uri);
-                     ];
-                   div
-                     ~a:[ a_class [ "output" ] ]
-                     [ txt (F.str "%s" contents) ];
-                 ]));
-        Lwt.return_unit)
-      csl
-  in
-  cstore >>= render ~container
-
 let _ =
   Dom_html.window##.onload
   := Dom_html.handler (fun _ ->
-         let container = by_id "toplevel-container" in
-         let output = by_id "output" in
-         let textbox : 'a Js.t =
-           by_id_coerce "userinput" Dom_html.CoerceTo.textarea
-         in
-         let storeview = Store.test_pull () in
-         let workspace_store =
-           storeview >>= fun sv ->
-           Store.S.Tree.find_tree sv [ ".config"; "workspace" ]
-           >>= function
-           | Some t -> Lwt.return t
-           | None -> Lwt.return (Store.S.Tree.empty ())
-         in
          Lwt.async (fun () ->
-             setup_workspace ~container workspace_store);
-         setup_storeview ~storeview ~container ~textbox;
-         Toplevel.run ~output ();
+             let output = by_id "output" in
+             let rootstore = Store.test_pull () in
+             rootstore >>= fun rs ->
+             (try Store.S.Tree.get rs [ ".config"; "init.ml" ] with
+             | Not_found | Invalid_argument _ ->
+                 Lwt.return
+                   "print_newline \"rootstore://.config/init.ml not \
+                    found\";;"
+             | exc ->
+                 Firebug.console##log_3
+                   (Js.string ".config/init.ml load exception")
+                   (Js.string (Printexc.to_string exc))
+                   exc;
+                 Lwt.return ";;")
+             >>= fun init ->
+             Toplevel.run ~init ~output ();
+             Lwt.return_unit);
 
          Js._false)
diff --git a/toplevel.ml b/toplevel.ml
index 430c057..c998433 100644
--- a/toplevel.ml
+++ b/toplevel.ml
@@ -377,7 +377,7 @@ module History = struct
       textbox##.value := Js.string !data.(!idx))
 end
 
-let run ~output () =
+let run ~init ~output () =
   Firebug.console##log "run";
 
   let container = by_id "toplevel-container" in
@@ -511,6 +511,17 @@ let run ~output () =
   History.setup ();
   textbox##.value := Js.string "";
   (* Run initial code if any *)
+  (try
+     textbox##.value := Js.string init;
+     Lwt.async (fun () ->
+         execute (Js.to_string textbox##.value##trim) ())
+   with
+  | Not_found -> ()
+  | exc ->
+      Firebug.console##log_3
+        (Js.string ".config/init.ml exception")
+        (Js.string (Printexc.to_string exc))
+        exc);
   try
     let code = List.assoc "code" (parse_hash ()) in
     textbox##.value := Js.string (B64.decode code);
diff --git a/toplevel.mli b/toplevel.mli
index 8e2ddb6..26bf137 100644
--- a/toplevel.mli
+++ b/toplevel.mli
@@ -1,4 +1,4 @@
 open Js_of_ocaml
 open Store
 
-val run : output:Dom_html.element Js.t -> unit -> unit
+val run : init:string -> output:Dom_html.element Js.t -> unit -> unit