This is not a normal Minecraft server at all. It is a free control panel that lets you run and manage a bunch of your own Minecraft servers on one machine.
You can make servers start them stop them and watch what they are doing. It has tools to handle mods using Modrinth or CurseForge so you can upload download and install stuff really easily.
There are admin tools too. You can ban players kick them or give them OP with RCON. There is a simple visual editor for server properties so you do not have to dig through text files.
It also has backups so you can create download and restore your worlds if something breaks. There are live stats with WebSocket updates so you can see what is going on in real time.
For logging in it supports JWT or LDAP so you can set up users with different roles. It runs with Python Flask and React and needs npm nodejs and docker on a Linux system. The creator wants to add more stuff later and is open to bug reports.
If you want to host your own Minecraft worlds and control everything yourself this panel is made exactly for that.
