I've been doing some modernization on an old scripting language used by the game engine I work on [1]. Added a garbage collector, simplified how internal symbols are defined, added a VS code extension with some niceties like syntax highlighting, "Go to Definition", and doc tooltips. Also recently added support for websockets and plan to tackle JSON soon. Oh, and so much refactoring.

https://github.com/ZQuestClassic/ZQuestClassic