I wanted to create a server, however there are no tutorials on youtube, and the ones that are there are from 6 years ago, I tried them and they didn’t work, I think the main problem is that their macOS is really old and so the command prompt isn’t similar. Does anyone know a tutorial that is new and works for macOS?
How to Make a TeamSpeak 3 Server on Mac OS
It’s also possible to create a TeamSpeak 3 server on MacOS. The whole setup can be completed in 4 simple steps.
Step 1 – Download and extract TeamSpeak 3 server
Start by downloading the TeamSpeak 3 server setup for Mac. Once finished, double-click to extract it.
Step 2 – Accept the TeamSpeak 3 license agreement
Open a new terminal box and execute the following to accept the license agreement:
set TS3SERVER_LICENSE=accept
Step 3 – Start the TeamSpeak 3 Server and retrieve your privileged key
Navigate to the extracted TeamSpeak 3 server files using the same terminal window. For example:
cd Downloads/teamspeak3-server_mac
Start the server by entering:
./ts3server
Wait a few moments for the process to finish. On the screen, you will also see your privileged key:
Step 4 – Connect via TeamSpeak 3 client
You’re now ready to use the TeamSpeak 3 server. When connecting, use the IP shown in System Preferences › Network section.
Don’t forget to paste in the privileged key to gain server admin rights.
Congratulations! You’ve created a TeamSpeak 3 server and connected to it on Mac OS!
I hope this help. 
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When I type ./ts3server and press enter it says:-
Please set the environment variable TS3SERVER_LICENSE to “accept” in order to accept the license agreement.
Alternatively, create a file named “.ts3server_license_accepted” in the working directory or start the server with the command line parameter “license_accepted=1”.
To view the license agreement set TS3SERVER_LICENSE to “view” in order to print the license to the console.
Alternatively view the file “LICENSE” in your favorite text viewer yourself
As i said above in Step 2:
Run the below command from the macOS terminal to accept the license agreement.
set TS3SERVER_LICENSE=accept
And then start your server. 
