Re: [GNU ELPA] New package: flymake-harper

> That's a viable solution for this particular backend, but in general
> that's IMO way too much work for a backend, and it's still not enough:
> you also need to choose keybindings, tell users about them, etc.  And
> every backend needs to do all that separately.  That's not quite
> "reasonably straightforward", sorry.
> The only thing backends should worry about is providing the fix data;
> the frontend should take care of all UI business.

The backends could just call a hook providing data.
And the users will customize the hook to use different UI:
for example, pop up the context menu, or select an action
with completing-read, etc.