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MochaPayload - a simple custom firmware

This a version of the original mocha to be used with the EnvironmentLoader.


([ENVIRONMENT] is a placeholder for the actual environment name.)

  1. Place the 00_mocha.rpx in the sd:/wiiu/environments/[ENVIRONMENT]/modules/setup folder and run the EnvironmentLoader.
  2. Requires PayloadFromRPX as sd:/wiiu/environments/[ENVIRONMENT]/root.rpx to support returning from the system settings.


  • You can also place a RPX as men.rpx in the sd:/wiiu/environments/[ENVIRONMENT]/ folder which will replace the Wii U Menu.
  • RPX redirection
  • overall sd access
  • wupserver and own IPC which can be used with libiosuhax.


For building you just need wut installed, then use the make command.

Building using the Dockerfile

It's possible to use a docker image for building. This way you don't need anything installed on your host system.

# Build docker image (only needed once)
docker build . -t mochapayload-builder

# make 
docker run -it --rm -v ${PWD}:/project mochapayload-builder make

# make clean
docker run -it --rm -v ${PWD}:/project mochapayload-builder make clean

Format the code via docker

docker run --rm -v ${PWD}:/src ghcr.io/wiiu-env/clang-format:13.0.0-2 -r ./source -i


dimok Maschell orboditilt QuarkTheAwesome