let f nick bio request =
<%s  Format.sprintf "Hello %s !" nick %>
    <%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>

    <img src="/user/<%s nick %>/avatar" class="img-thumbnail" alt="Your avatar picture">
    <%s! Dream.form_tag ~action:"/profile" ~enctype:`Multipart_form_data request %>
      <input name="file" type="file">
      <button>Submit!</button>
    </form>