Get both `haxchi.elf` and `haxchi.zip` from <https://github.com/FIX94/haxchi/releases>. List of compatible games are here: <https://github.com/FIX94/haxchi/blob/master/README.md>

Extract the contents of `haxchi.zip` to `sd:/haxchi` (make the folder). It should be `sd:/haxchi/(haxchi.zip contents)`.

Go to `wiiu/apps/` and make a folder named `haxchi` and drop `haxchi.elf` into the folder. `sd:/wiiu/apps/haxchi/haxchi.elf`

(If you have a previous haxchi, you do not need to uninstall it. You can simply install over it. At this point, make sure that your DS VC game is on the System Memory and NOT on a USB drive.)

Run the elf on the Wii U by using your entrypoint to get to HBL and open the tab called haxchi.

It will ask you to pick the game you want haxchi to be installed on, and after that a warning. Just press A and you're good to go!

After that, you have haxchi!

If you desire to uninstall haxchi, you must delete the DS VC game entirely and download it again.

Config.txt format:

DEFAULT=<filepath> is used for when you don't press anything while haxchi is booting.

BUTTON=<filepath> is used for when you hold a button when booting haxchi.

`default=fw.img` - loads into CFW SysNAND/RedNAND depending on the fw.img you compiled when holding nothing.

`a=wiiu/apps/homebrew_launcher/homebrew_launcher.elf` - loads into Homebrew Launcher when holding A.

My config:

default=wiiu/cfw/fw.img

up=wiiu/rednand/fw.img

a=wiiu/apps/homebrew_launcher/homebrew_launcher.elf

b=wiiu/apps/wupinstaller/wupinstaller.elf

x=wiiu/apps/hidtovpad/hidtovpad.elf

y=wiiu/apps/appstore/hbas.elf

Say you want WUP Installer:

Go to `wiiu/apps/wupinstaller` on your SD card.

`wiiu/apps/<homebrew_name>/<filename.elf>` is the directory the Wii U follows.

It should be this when completed: b=wiiu/apps/wupinstaller/wupinstaller.elf

The end task of this is to make a directory it follows.

If you want CFW SysNAND and RedNAND, do this configuration:

Make two folders named `cfw` and `rednand`. Drop the correct fw.img's into the correct folders.

Put this in config.txt:

a=cfw/fw.img

b=rednand/fw.img

If you want, you can make either one the default so you don't have to press anything.

default=cfw/fw.img

a=rednand/fw.img

Remember you can change the buttons.

To install your new config, just run the haxchi installer again! YOU MUST USE THE INSTALLER IN ORDER FOR YOUR NEW CONFIG TO TAKE EFFECT.