About と Guidelines のカスタムページ:デフォルトをどう置き換えるか?

How do I do the following?

I would like to replace the default About page at forum.host.tld/about with a static About page I have at www.host.tld/about or redirect the former route to the later one.

I’d like to do this for the default Guidelines page as well.

Tried creating custom Permalinks within the Discourse like:
/about => (external) => https://host.tld/about
forum.host.tld/about => (external) => https://host.tld/about

But it did not help.

You could hide the existing links in the hamburger menu using CSS

.menu-container-faq-link, .nav-item-faq, .nav-item-tos, .nav-item-guidelines {
    display: none;
}

and then add custom hamburger menu links

「いいね!」 2

Thanks, I know I can hide things, but that’s not the point.
I think it should be possible just to use own custom About pages, just like Privacy and Terms of Service.
(i.e. without monkeypatching)

こんにちは、
これを CSS に追加しましたが、効きませんでした。

About / ToS / FAQ ページのメニューボタンは消えたのですが、ハンバーガーメニュー内の FAQ リンクは残ったままです。

このリンクを削除するにはどうすればよいでしょうか:

よろしくお願いします!