since ArrowOS ceased to provide updates, I've again created my own one, based on the android-security-11.0.0_r56 tag provided by Android Source.
Android security 11.0.0 release 56 contains the security patches of June 2022, so I bumped the version string to 2022-06-01. Actually, I want to give credits to ArrowOS here as well, as some of those patches made public by this Android release have been incorporated into ArrowOS months ago already.
I've compiled that state locally , transferred it to the phone using
adb push Arrow-v11.0-sanders-UNOFFICIAL-OTA-20220601-VANILLA.zip /sdcard
and installed it using TWRP.
Following the restart, I flashed the latest NikGapps-basic-arm64-11-20220421-signed.zip as well.
The last couple times, the phone had trouble upon the first restart, but restarting it again, everything worked - but not this time.
Feel free to download and use - but please, no responsibility is assumed.
If you look closely, you'll notice the new webspace, I've created for this, you'll also get a more detailed changelog there.
I will take care of the July 2022 once they come out (and I have time to do so).
Again, help is very welcomed to migrate sanders to Android-12.1, which I haven't been able to compile yet. Also, this May 2022 image continues to use outdated kernel-3.18, since I haven't been able to update to a more recent 4.x or 5.x version.
Feedback is wanted as well, since I'm still quite new to this business.