In order to setup WiFi with the correct credentials open the attached file "wpa_supplicant.conf" with a text editor and fill in the correct ssid and password that matches your WiFi setup.
Insert the sd-card from raspi into your computer and open it in the finder. Place the generated "wpa_supplicant.conf" onto the card.
Insert the card back to the raspi and boot. The raspi should now boot and connect to the new WiFi.
LanScan for getting the IP address of the raspi - https://apps.apple.com/de/app/lanscan/id472226235?mt=12
User: pi Passwort: user
ssh pi@192.168.20.248 (replace with the proper IP address of your raspi)
ls - List current directory contents cd + ... - entering a directory cd .. - going back one directory sudo nano + ... - opening a file in editor sudo python3 + ... - running a python script with python3 ps aux - list current running processes sudo kill 425 - kill the process with ID 425
"option"+"c" - quit the current running process