A Fabric mod that allows you to:
- Customize more of your integrated server (Online Mode, PvP, Port, Max Players, MOTD)
- Change the settings mid-game (including the port) and stop the server without quitting the world
- Change who can use cheats individually using the
/opand/deopcommands and cheat in singleplayer without opening to LAN (replaces the Allow Cheats button)
It also allows you to start the LAN world by pressing Enter, doesn't force the gamemode (e.g. anyone who left in Creative mode will still be in Creative when they join even if the world is set to Survival), and extends the /publish command, which can now change settings mid-game as well:
/publish [<port>] [<onlineMode>] [<pvpEnabled>] [<maxPlayers>] [<motd>]
/publish stop
It only requires Fabric Loader—Fabric API is not required.
It has been backported to all Minecraft versions supported by Fabric (except the snapshots)! I'm not planning on porting it to Forge myself for now (this, this, that and that is why), but you're more than welcome to send me a pull request.
/op and /deop work like in dedicated servers.
You can also use them on yourself, the owner. Doing this will add/remove the "Cheats" label on the world (as if you've NBT edited the allowCommands field), and you can use these commands without opening to LAN as well, replacing the Vanilla method of opening to LAN, cheating, quitting the world and entering it again.
Operators are persisted per-world in an ops.json file inside that world's directory. To allow operators to assign and remove other operators, change their level in the ops.json file to 3 or higher (the default is 2, while level 4 allows them to use /publish). You, as the host, can always assign and remove operators, even if you're not an operator yourself.