Agreed, I think this tutorial is good: https://hackage.haskell.org/package/lens-...

		smegma2 6 months ago \| parent \| context \| favorite \| on: Lens: Lenses, Folds and Traversals Agreed, I think this tutorial is good: https://hackage.haskell.org/package/lens-tutorial-1.0.5/docs...