O serveOtherPage2(Req req) null {
  if (eq(req.uri, "/latestPost")) {
    UserPost post = highestConceptByField UserPost("created");
    if (post == null) ret serve404("No posts in database");
    ret servePost(post);
  }
  
  if (eq(req.uri, "/latestModifiedPost")) {
    UserPost post = highestConceptByField UserPost("_modified");
    if (post == null) ret serve404("No posts in database");
    ret servePost(post);
  }
  
  if (eq(req.uri, "/rootPosts")) {
    Cl<UserPost> rootPosts = sortedByConceptIDDesc(filter(list(UserPost), post -> empty(post.postRefs)));
    ret htitle_h1("Root Posts")
      + ul(lmap objectToHTML(rootPosts));
  }
}