I built a small proof-of-concept for a system that enables real-time bidirectional editing between any modern code editor and a GUI, enabled by an LSP server. How much of this needs to be built to evaluate whether bidirectional editing “fits nicely in the hand”? I had certainly never considered that they could facilitate bidirectional editing with a GUI. What’s new, as far as I’m aware, is real-time bidirectional editing that works with your favorite text editor. Zoo has some bidirectional editing, but only with its built-in editor.