Downloading and installing apk files using Expo

Here’s my problem: Google play store does not allow paid apps to be purchased in my country.

So what I’d like to do is make a free app that allows other apps to be purchased, downloaded and installed (essentially a play store specifically for my country). Is something like this possible with Expo? If so, how would I go about doing this?

I’d just like to be pointed in the direction of what Expo offers that would allow me to download and install apps using my Expo app.

Right now all I can think of is having a URL link that redirects to a browser and other apps gets downloaded from there. But that doesn’t help as “Allow installation from unknown sources” would have to be checked. I want permission for my Expo app to download and install.

Thanks in advance