osp: offline server password

Offline servers allow a player to create multiple accounts.

However, the system that identifies players by nicknames can cause nickname theft problems.

Therefore, this mode adds the ability to create password that correspond to your nicknames within the world or server.

command: /password

and i recommend you to use this mod together!

in-game account switcher mod

(https://www.curseforge.com/minecraft/mc-mods/in-game-account-switcher)