Available at https://github.com/corsicanu/android_kernel_samsung_universal9830
This was tested and it's fully compatible with minimal manifest twrp.
- Set up the build environment following instructions from here
- In the root folder of cloned repo you need to clone the device tree:
git clone -b android-11.0 https://github.com/TeamWin/android_device_samsung_x1s.git device/samsung/x1s
- To build:
export ALLOW_MISSING_DEPENDENCIES=true && . build/envsetup.sh && lunch twrp_x1s-eng && mka recoveryimage -j128