One optics issue is that dependencies occasionally cause pain in every environment. When that happens in Haskell, it gets labeled "cabal hell" even though the

One optics issue is that dependencies occasionally cause pain in every environment. When that happens in Haskell, it gets labeled "cabal hell" even though the worst issues have been long since fixed. https://en.wikipedia.org/wiki/Dependency_hell https://en.wikipedia.org/wiki/Dependency_hell