There are other methods of distribution than app stores. People didn't buy their copy of Napster from GameStop back in the day, they downloaded it from a website.
Everything is already in place for this, both hardware- and software-wise.
And all of them are completely irrelevant because only us nerds would even know about them let alone how to use them.
> People didn't buy their copy of Napster from GameStop back in the day
Those days are long dead.