- Indium adds JavaScript tooling support and runtime interaction to Emacs and brings a few Smalltalk features such as object inspection (the project creator and maintainer is a Smalltalker and author of Amber): https://github.com/NicolasPetton/indium
- Lively provides a Smalltalk-like environment (code browsing, editing) as well as object(-graph) persistence, similar to the Smalltalk image idea, and mixes in some ideas from Self: http://lively-next.org/
Here's a video for you :) https://www.youtube.com/watch?v=9mrBH_a0eIs A (very super duper early and hoping to be) Smalltalk-like env for a JS runtime for touch interfaces (currently React Native + Expo) -- already has prototype of a windowing system and an AST renderer (+ basic editing, working on adding more) editor with live eval.