Supervised installation

How can I install supervisor with wget.
I want to keep the Debian version because this easy to install other things with ssh.

The WGET way is deprecated. There is now a .deb package which does the job.
If you want more control on what is done on your machine, you can still find the script in the github history

If you install other things then you are responsible for supporting your installation. Supervised is only supported on a plain vanilla Debian installation with nothing else installed.

This was the compromise reached after Supervised was going to be canceled due to developer overload.