Install a NeoForge 20.6.116 (MC 1.20.6 ) server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → NeoForge 20.6.116 (MC 1.20.6 ))
Solid server. I've had very little issues I can blame on the server host. I use the server weekly, and other than some minor lag, which can probably be blamed on my RAM, I've had no issues.