mkw-sp

An experimental, open source, cross-platform service pack for Mario Kart Wii that adds features over the base game. The README is short; the project website carries the full list.

Mario Kart Wii Service Pack is an experimental, open source, cross-platform mod for the game. The goal is to provide a variety of features and improvements over the base game, with more details promised on the project website. The introduction is kept short on purpose, and the full feature list lives elsewhere.

The build dependency list is exact. devkitPPC with the DEVKITPPC environment variable set, ninja which can also be swapped for samurai, protoc, Python 3, pyjson5, pyelftools, an itanium demangler, and the Python protobuf package. One gotcha is called out directly: when installing from pip the package is called json5, not pyjson5. Each entry is named outright, so the setup is unambiguous for anyone who has not built a Mario Kart Wii mod before.

The contribution rules are practical. If someone is already working on something, comment on the relevant issue or open a new one if needed. The codebase mixes C and asm, with C preferred for full function replacements and any complex logic, and no assumptions about register usage by C code except the ABI. Code is formatted automatically with clang-format version 15, CI checks that formatting, and it must be run before a merge. For an unoptimised build with debugging information, the Python build script takes a debug flag.

The README keeps the intro minimal and pushes the feature details to the website, while the repo itself holds the practical build and contribution information a developer would actually need.

• Source 1 · Project repository
• Source 2 · README