diff --git a/src/repl/elem.rb b/src/repl/elem.rb
deleted file mode 100644
index ed25f764be..0000000000
--- a/src/repl/elem.rb
+++ /dev/null
@@ -1,87 +0,0 @@
-import ui.Elem
-
-## Example:
-## datepicker({ date, format, enabled: False })
-Datepicker :: {
-    ## The initial date
-    date : Date,
-
-    ## Format of the displayed date
-    format : Format,
-
-    ## True if the datepicker is interactive
-    enabled : Bool = True,
-}.{
-    DateChangedEvent := [Opened, Closed, PickedDate(Date)]
-
-    datepicker : Datepicker -> Elem(DateChangedEvent)
-    datepicker = Elem.custom({ init, subs, handle, render })
-}
-
-State :: {
-    selected: Date,
-    opened: Bool,
-}
-
-init : Datepicker -> State
-init = |config| {
-    selected: config.initial_date,
-    opened: False,
-}
-
-subs : Datepicker, State -> List(Sub(Event))
-subs = |_config, _state| Sub.config_changed(ConfigChanged)
-
-handle : Datepicker, State, Event -> Act(Datepicker, Event, DatepickerEvent)
-handle = |config, state, event| match event {
-    ChangedYear(year) => Act.update(state.map_selected(.with_year(year)) })
-    PressedDay(day) => Act.update(state.map_selected(.with_day(day))
-    PressedNextMonth => Act.update(state.map_selected(.next_month()) })
-    PressedPrevMonth => Act.update(state.map_selected(.prev_month()) })
-    PressedOpen => Act.update_emit({ ..state, opened: True }, Opened)
-    PressedCancel => Act.update_emit({ opened: False, selected: config.initial_date }, Closed)
-    PressedOk => Act.update_emit(
-        { ..state, opened: False },
-        PickedDate(Date.ymd(state.year, state.month, state.day)),
-    )
-    ConfigChanged => if (state.opened) Act.none() else Act.update({ ..state, selected: config.date })
-}
-
-render : Datepicker, State -> Elem(Event)
-render = |config, state|
-    if (state.opened)
-        col().p2().grow([
-            (0, top_bar(state.selected.month(), state.selected.year())),
-            (1, days_grid(state.selected.day())),
-            (0, bottom_bar),
-        ])
-    else
-        row().p2().space_between(4, [
-            text(date.format(config.format)),
-            button(text("Change"), PressedOpen),
-        ])
-
-bottom_bar : Elem(Event)
-bottom_bar =
-    row().p4().justify_right([
-        button(text("Ok"), PressedOk),
-    ])
-
-month_selector : Month -> Elem(Event)
-month_selector = |month|
-    row().p8().space_between(4, [
-        button(icons.left_arrow, PressedPrevMonth),
-        text(month.to_str()),
-        button(icons.right_arrow, PressedNextMonth),
-    ])
-
-top_bar : U8, U16 -> Elem(Event)
-top_bar = |month, year|
-    row().grow([
-        (1, month_selector(month)),
-        (0, text_input({ text: year.to_str(), placeholder: "Year" }, ChangedYear))
-    ])
-
-days_grid : U8 -> Elem(Event)
-days_grid = |day|
-    # ...etc