An attempt to port the concur library to PureScript.
Note: I'm not developing this anymore (focusing instead on purescript-specular), but the author or Concur for Haskell has started his own PureScript port: https://github.com/ajnsit/purescript-concur.
It somewhat works, you can make a UI with it. See examples/todomvc.
Needs documentation on semantics of Widget.
Has severe performance problems. Rendering is probably quadratic in the number of DOM elements placed sequentially. This should be fixable.