Update CanvasIO to be backed by a RIO implementation #28
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After writing some more advanced code, the lack of a "normal" IO monad makes writing effectful code (e.g. accessing a server) a bit awkward.
Also, when looking into scala IO monads, it seems that they don't care that much for scala native supports. Since the
CanvasIO[A]was just aRIO[Canvas, A], I just implemented a RIO monad/profunctor.This might help with #19 (I might end up using a
RIO[Input, A]for this, not sure yet) and #18.