You may try the last version. It is now compatible with armv7 chips (not only v8). I tested on a Android v6.0, it wasn't working, now it is!
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
