Custodian, alrigt. So you just don't care what stuff will be added to OpenRepos. It's ok, as long as you don't position your site as Store replacement.

But if I were you, and wanted to make a frontend app with some nice userfriendly functionality, I'd have some kind of control over what apps should be visible to the target user. Because "if you cannot install applicaiton via warehouse, then your phone doesn't meet non-existent application requirements" attitude is totally not the one that user expects from Store-like kind of app.