The problem is, this install is open for exploit for anyone, who manages to access content on that server. A single exploitable security hole in the web server

The problem is, this install is open for exploit for anyone, who manages to access content on that server. A single exploitable security hole in the web server or its setup, and you can easily compromise anyone installing Asahi Linux. As you are even running a shell script, it is sufficient to inject one line into the installation script, which also installs malware while installing Linux.