Super Mario War is, quoting the main project, a fan-made multiplayer Super Mario Bros. style deathmatch game.
- the libnx homebrew cmake toolchain files from @jfmherokiller
- the devkitA64 toolchain, libnx and multiple portlibs from devkitpro
- a fork of the main repo with switch specific changes
Download the latest release, and extract the archive in the /switch folder on your SD Card. Then, run the game from the hbmenu using hbl.