Var, View, Lens, ListModel in UI.NextLast week I needed to make a two way binding for a record with nested lists. More precisely, I needed to observe all changes on this record. This changes included normal members but also lists and I needed to observe changes like adding and removing items.It took me a week to come out with a solution where I had to iterate multiple times to get to it. I started with something which was far from ideal then had a conversation on WebSharper forum with Loïc and István and c[...]