Hello,
I believe I followed the instructions to first set up the SD card and then the SSD, and then try to boot. The Gladys logo appears and text scrolls at the bottom left of the screen, but after entering the login and password, a line, like a command line, appears: pi@raspberrypi: « $ » and I don’t know what to do. I’m a complete beginner and am looking to you for solutions that would allow me to install Gladys and use it, it looks very good.
Thank you
JLuc
Nothing more to say 
Gladys is accessible at http://gladys.local or http://adresse.ip.du.raspberry
Hello,
Thank you, Vincent.
I waited today to try, but the following line appears on the black screen:
No such file or directory
Whether with the IP address or gladys.local or raspberrypi.local
This is a URL, gladys is a web application, you can access it with any modern browser (Chrome, Firefox, Edge, Safari, etc…)
The problem is that the line appears on the black screen, without a browser.
How is it possible to get a web page to launch Gladys?
You can use the Net Analyzer app to scan your Wi-Fi network and see what the IP address of your Pi is.
After that, you will have the address that you will need to enter in your web browser.
Oops, I was trying to open Gladys directly on the screen connected to the Raspberry! I mentioned a level 0 but that was still overestimated.
Now I have the home page on my computer and I can start building a network and surely still need your advice.
Thanks