How to Setup a LAN Games Proxy on macOS
Download the Phantom Proxy Server & open the Phantom folder.
Click the Spotlight Search in the top right toolbar and search Terminal
Open the Terminal & type the following:
Make sure there is a space after the
Then drag the Mac Start.command file into the Terminal and hit Enter.
Then repeat the same steps above, this time dragging the phantom-macos file into the Terminal.
Double click the Mac Start.command. You will get an "unidentified developer" window, hit OK.
Open System Preferences and navigate to Security & Privacy.
Select the Open Anyway button, then select Open.
If you get a window asking you to "Move to Trash", hit Cancel.
Again, under Security & Privacy, this time select Allow Anyway.
Run the Mac Start.command file once more & select Open.
This must always be running when you want to play on the server.
Launch Minecraft & navigate to the Friends tab.
You should see the server under LAN Games as shown in the following image:
Select it and join the server!
For more information regarding Phantom, check out their GitHub