Pls write a tuotorial to dual boot 2 windows 10 mobile builds

[Lasitha]

I love windows phone very much, but I'm very sad that it will be gone on 2020.
I am using a Lumia 930 and love my phone very much.
I want to dual boot two windows 10 mobile builds because of this,
I have the build 10240 rom that has the ability to install apk files, surely I can flash the rom but in this rom is very buggy and has problems like below,
. week Cortana,
. No continuum feature.
. lot of bugs.
So I want to keep the build 10240 and also the build 15254.
Pls help me with this because I saw that you have managed to boot windows arm also keeping the windows 10 mobile.
Any help you will give will save my most loving mobile
Thank you.

[Ameowli]

This is both the wrong forum and wrong sub board for this thread.

Also, unless you do some weird partition hiding shenanigans, far as I know you can't dual boot two installations of Windows Mobile. [s]I have been horribly wrong before, though.[/s]