You can get a command block in your Minecraft Java or Bedrock world using cheats and a special chat command.

Since Minecraft is a highly customizable sandbox, Mojang has allowed players to tinker with its core game mechanics using simple written commands, blocks, and items. Most of these blocks and items, ...

Minecraft: Java Edition is the original version of the game for computers, while Bedrock is a newer version available on nearly every device.

It's not an option I would recommend too much in the long run, because to play, that person will have to be connected and with the server running at all times. In other words, every time you want to ...