Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
An abstract representation of the Twine hypertext system, with interfaces, abstract classes, concrete classes, and type guards for every symbol/word used by a generic Twine programming language.