我用debian-10开始我的新服务器安装。
nginx工作正常，由apt install nginx-full安装，但后来，想安装乘客，在这种方式https://www.phusionpassenger.com/library/install/nginx/install/oss/stretch/（巴斯特没有列出），我无法让它运行。

1) sudo apt-get install -y dirmngr gnupg
2) sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-3) keys 561F9B9CAC40B2F7
3) sudo apt-get install -y apt-transport-https ca-certificates

# Add our APT repository
4) sudo sh -c 'echo deb https://oss-5) binaries.phusionpassenger.com/apt/passenger stretch main > /etc/apt/sources.list.d/passenger.list'
5) sudo apt-get update

# Install Passenger + Nginx module
6) sudo apt-get install -y libnginx-mod-http-passenger

=〉在第5步，结果为：

root@33041:/# apt update
Hit:1 http://debian.ethz.ch/debian buster InRelease
Hit:2 http://debian.ethz.ch/debian buster-updates InRelease                                    
Hit:3 http://security.debian.org/debian-security buster/updates InRelease                                          
Ign:4 https://oss-binaries.phusionpassenger.com/apt/passenger stretch InRelease                                    
Hit:5 https://oss-binaries.phusionpassenger.com/apt/passenger stretch Release
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
root@33041:/#

在步骤6中，结果为：

root@33041:/etc/apt# apt install -y libnginx-mod-http-passenger
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libnginx-mod-http-passenger : Depends: passenger (= 1:6.0.2-1~stretch1) but it is not going to be installed
                               Depends: nginx-common (< 1.10.4) but 1.14.2-2+deb10u1 is to be installed
E: Unable to correct problems, you have held broken packages.
root@33041:/etc/apt#

=〉然后我试了

apt install passenger

=〉并获得：

root@33041:/etc/apt# apt install passenger
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 passenger : Depends: libcurl3 (>= 7.16.2) but it is not installable
             Recommends: passenger-doc (= 1:6.0.2-1~stretch1) but it is not going to be installed
             Recommends: passenger-dev (= 1:6.0.2-1~stretch1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
root@33041:/etc/apt#

问题：
a）有没有人带nginx和passenger来运行debian-10？（我不想从源代码重新编译nginx，比如this）
b）如果没有，其他推荐的方法是什么（nginx作为puma的代理..）？
谢谢，克里斯