Since 0.19 banned operators, I would avoid using monocle. If you don't need prisms or isos, I would suggest looking at https://github.com/bChiquet/elm-accessor

Since 0.19 banned operators, I would avoid using monocle. If you don't need prisms or isos, I would suggest looking at https://github.com/bChiquet/elm-accessors https://github.com/bChiquet/elm-accessors, which uses basic composition to make composable lenses/traversals.