let f nick bio request =
  <h1><%s  Format.sprintf "Hello %s !" nick %></h1>
  <%s! Dream.form_tag ~action:"/profile" request %>
    <div class="mb-3">
      <label for="bio" class="form-label">Bio</label>
      <textarea name="bio" type="text" class="form-control" id="bio" aria-describedby="bioHelp"><%s bio %></textarea>
      <div id="bioHelp" class="form-text">Who are you?</div>
    </div>
    <button type="submit" class="btn btn-primary">Save</button>
  </form>
  <br />
  <img src="/user/<%s nick %>/avatar" class="img-thumbnail" alt="Your avatar picture" />
  <br />
  <br />
  <%s! Dream.form_tag ~action:"/profile" ~enctype:`Multipart_form_data request %>
    <input name="file" type="file"><br />
    <br />
    <button class="btn btn-primary">Submit picture!</button>
  </form>