I just tried latest github version Krux 23.04 BETA_3 Android_0.5 on same old junk Android 4.4.2 and I can confirm it's sadly NOT working.
Error message I am getting is:
There was a problem parsing the package.
This is very old android device so I am not expecting any miracles

Sorry to hear that, I believe we won't be able to go lower than Android 6.0. But the effort to lower the requirements was fruitful. Thanks for testing!