Haskell Lens Operator Onboarding. Lenses are immensely useful to the… | by Russell Matney | Medium
Isomorphism lenses
Optics — Lenses 1.1.0 documentation
Optics By Example by Chris Penner [Leanpub PDF/iPad/Kindle]
Haskell Sunglasses
André Staltz on Twitter: "About Recoil (FB's new state management library), it has selectors with both `get` and `set` parts, which is basically a lens in disguise. See my talk about lenses
GitHub - ekmett/lens: Lenses, Folds, and Traversals - Join us on web.libera.chat #haskell-lens