"Sophisticated markup language with embedded JavaScript" is a fine model of Nota. You can also think about it as another syntax for a React program, like an alternative to JSX that's oriented at writing documents (prose-first) rather than writing websites (code-first).

The complexity of Javascript and React gives you two main benefits:

1. You can use Javascript as a metalanguage to manipulate the document, e.g. to make and reference variables, perform computations, and so on.

2. You can use React to provide semantic structure and interactivity to your document, e.g. to mark definitions of vocabulary and link references back to the definition.

Nota consists of a syntax, a compiler that goes from Nota document to React program, and a set of React components that are commonly used in Nota documents. You could integrate it into a website or CMS, but it is not inherently any kind of information management system.