Once you have **Debian 9**<small>(with **kernel >= 3.12**)</small> and access to a command line on your server (either directly or through SSH), you can install yunohost by running command as root :
<small>*(If `wget` is not installed on your system, you might need to install it with `apt install wget`. Otherwise, if the command does not do anything, you might want to `apt install ca-certificates`)*</small>
If you strongly object to the `curl|bash` way (and similar commands) of installing software, consider reading ["Is curl|bash insecure?"](https://sandstorm.io/news/2015-09-24-is-curl-bash-insecure-pgp-verified-install) on Sandstom's blog, and possibly [this discussion on Hacker News](https://news.ycombinator.com/item?id=12766350).