问题:ppa:ondrej/nginx 的目的是什么?

我刚刚在我的 ubuntu 服务器上添加了ppa:ondrej/php,它提示我下面的消息。

为什么建议我也添加ppa:ondrej/nginx(稳定)?这样做的确切目的是什么?

有关信息,我已经从官方文档](http://nginx.org/en/linux_packages.html#Ubuntu)安装了 Nginx[。

$ sudo add-apt-repository ppa:ondrej/php
Note: PPA publishes dbgsym
  You need to add 'main/debug' component to install the ddebs,
  but apt update will print warning if the PPA has no ddebs
Repository: 'deb http://ppa.launchpad.net/ondrej/php/ubuntu/ groovy main'
Description:
Co-installable PHP versions: PHP 5.6, PHP 7.x and most requested extensions are included. Only Supported Versions of PHP (http://php.net/supported-versions.php) for Supported Ubuntu Releases (https://wiki.ubuntu.com/Releases) are provided. Don't ask for end-of-life PHP versions or Ubuntu release, they won't be provided.

Debian oldstable and stable packages are provided as well: https://deb.sury.org/#debian-dpa

You can get more information about the packages at https://deb.sury.org

IMPORTANT: The <foo>-backports is now required on older Ubuntu releases.

BUGS&FEATURES: This PPA now has a issue tracker:
https://deb.sury.org/#bug-reporting

CAVEATS:
1. If you are using php-gearman, you need to add ppa:ondrej/pkg-gearman
2. If you are using apache2, you are advised to add ppa:ondrej/apache2
3. If you are using nginx, you are advised to add ppa:ondrej/nginx-mainline
   or ppa:ondrej/nginx

PLEASE READ: If you like my work and want to give me a little motivation, please consider donating regularly: https://donate.sury.org/

WARNING: add-apt-repository is broken with non-UTF-8 locales, see
https://github.com/oerdnj/deb.sury.org/issues/56 for workaround:

# LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php
More info: https://launchpad.net/~ondrej/+archive/ubuntu/php
Adding repository.
Press [ENTER] to continue or Ctrl-c to cancel.

我不太了解个人包裹档案 (PPA),所以我希望能得到一些关于它如何工作的帮助。

解答

根据主页为ppa:ondrej/nginx,这里是PPA说明:

This branch follows latest NGINX Stable packages compiled against latest OpenSSL for HTTP/2 and TLS 1.3 support.

BUGS&FEATURES: This PPA now has a issue tracker: https://deb.sury.org/#bug-reporting

PLEASE READ: If you like my work and want to give me a little motivation, please consider donating: https://donate.sury.org

所以是的,与ppa:ondrej/php的目的相同,但要安装最新的 Nginx(稳定)版本。