Have you been using outside libraries that were written in javascript on these projects?
I always anticipated that would be a downside of using Elm. I know there must be hooks to let you integrate pure javascript (jQuery-type) libraries and widgets into your app, but wouldn't it be really annoying?
I'm writing Angular apps these days and one of the most time-consuming tasks is this sort of integration (for instance, right now I'm trying to add FullCalendar [0] to an app), and it doesn't work so nicely with the digest cycle of Angular, or play nicely with how data is passed around. And Elm is even more alien to javascript than a javascript app using Angular would be to javascript. So how is this area for you?