Right now this loads mods (.so files) from /sdcard/Android/data/com.beatgames.beatsaber/files/mods/ and patches out the song-signature-check.
Uses https://github.com/ele7enxxh/Android-Inline-Hook + some macros for magic
Follow https://koz.io/using-frida-on-android-without-root/ to learn how to inject the modloader-library into the beatsaber apk (with the so built from this instead of frida)
The function offsets (as well as infos about the structs) can be obtained with il2cppdumper
ndk-build NDK_PROJECT_PATH=. APP_BUILD_SCRIPT=./Android.mk NDK_APPLICATION_MK=./Application.mk