How can I package the framework into the program in advance, but resources and other files downloaded to the sandbox

This is very important, I must implement this function, but I do not know how to implement, can you provide some ideas

This is what we need to do in our project. The dynamic library we downloaded is for controlling Bluetooth devices to diagnose faults of vehicle devices. How should I achieve this？Can you help me? Or can I package the executable file into the program and download the resource into the sandbox, because this part of the resource is very big？

'he' mean this app https://apps.apple.com/cn/app/thinkdiag/id1483420979,He was able to open dynamic libraries in the sandbox

Can I sign, verify, review the dynamic library and then put it on the server to download, but can't open it?

he download this,How do I open it?

I see other APP is done, like https://apps.apple.com/cn/app/maxiap-ap200/id1338602548?l=en

I need to download the signed framework uploaded by myself, because I need to use it to communicate with Bluetooth devices. Each function is different, so I must download and use it

But I need this need. How do I do it