Out of curiosity, what's the advantage of having this in the private structure by value, and then again in the public structure by pointer? Same for the PluginInfo struct. After making a few plugins using the new API I'm always wondering why I can't write this:

```c plugin->info.name = "foo"; ... plugin->funcs.init = foo_init; ```

Is there a technical reason for the extra indirection which I don't see?