Ty Overby is a programmer in Jane Street’s web platform group where he works on Bonsai, our OCaml library for building interactive browser-based UI. In this episode, Ty and Ron consider the functional approach to building user interfaces. They also discuss Ty’s programming roots in Neopets, what development features they crave on the web, the unfairly maligned CSS, and why Excel is “arguably the greatest programming language ever developed.”You can find the transcript for this episode  on our website.Some links to topics that came up in the discussion:Jane Street’s Bonsai libraryThe 3D design system OpenSCADMatt Keeter’s libfive design toolsTry .NET in-browser replJane Street’s Incr_dom libraryThe Elm Architecture “pattern for architecting interactive programs”React JavaScript libraryThe Houdini proposalSvelte UI toolkit