Custom Lantern is a mod for the game Elden Ring.
https://www.nexusmods.com/eldenring/mods/3170
Install Docker https://www.docker.com/
Open a PowerShell command-line interface and write:
git clone --recurse-submodules https://github.com/0-F/CustomLantern.git
cd CustomLantern\CustomLanternPatcher
.\publish.ps1