All-in-one .3dsx executable for gaining ARM9 code execution
This is a combination of udsploit and safehax. Just run the .3dsx and it will automatically patch kernel, and then run safehax to execute a custom ARM9 binary.
This program will try to load safehaxpayload.bin that's on SD root, but if it fails, it will fallback to a bundled ARM9 binary that has been extracted to a hex array and embedded in the source. Note that this is optional, and is not required for compiling.
Note that you don't have to use this as a boot.3dsx, it can be used as a normal .3dsx from hbmenu