I am going to highly recommend that no one use this unless you are 100% confident in what you are doing.
from the developers:
IS IT SAFE TO USE THE LEAKED ELECTRA RC1 IPA FILE?
I highly recommend not to use this file except for testing purposes.
With that said, Coolstar and other renowned developers such as nullpixel have warned users not to try anything before the public release.
There will be no support for this if something goes wrong.