apk patching with blueprint for UE 5.2

Hello,

I would like to patch an APK from my webspace, while it is still in development.
The testing people would click a button and if there is a new apk version it would be downloaded, but after installing the downloaded apk should not be stored.

What would be the main steps to solve that by only using blueprints?

I don’t want to use Google, Steam or Amazon, just my website.

I’m no native english speaking person and don’t know much about UE or development at all, so I have problems with finding the right tutorials in the Internet. Most what I found was for Windows but not Android, or it lead to GooglePlay stuff.
I tried this https://docs.unrealengine.com/5.2/en-US/mobile-patch-utility-nodes-in-unreal-engine/ but I don’t know how to address the apk file.

Thanks for helping out.