a randomizer platform for a multitude of games
You can either export a RomFS with nxdumptool from your Switch
or use Ryujinx to export the RomFS from an image (.nsp or .xci)
We´ll show you how you do it with Ryujinx
and an image of your original game.
First we need to install Ryujinx.
Download the newest Ryujinx version here: https://ryujinx.org/download
To run Ryujinx you´ll need the prod.keys file from your Switch.
To get the you´ll need to run Lockpick RCM on your Switch.
You can get the tool and a tutorial how to do it here:
https://github.com/shchmue/Lockpick_RCM
After you have the key file start Ryujinx.
HowTo export a RomFS from your Metroid Dread module or image