Making Bootstrap Module


I've seen many post asking for specific feature. But many of them are too user-specific and thus can't be integrated in the app. So, in a far futur, why not making possible to develop module/extension for BBS to handle these specific features without integrating it in the app ?

But I don't really know which language should be used and how it should be used

I know this thing would be particularly difficult to make, but this would be awesome ! Everyone could make their own custom BBS feature !