SVELTE.DEV

Svelte is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue do the bulk of their work in the browser, Svelte shifts that work into a compile step that happens when you build your app. https://svelte.dev

cube.js

Open Source Analytical API Platform Cube.js is great for building internal business intelligence tools or adding customer‑facing analytics to existing applications https://cube.dev

RxJS

RxJS is a library for composing asynchronous and event-based programs by using observable sequences. It provides one core type, the Observable, satellite types (Observer, Schedulers, Subjects) and operators inspired by Array#extras (map, filter, reduce, every, etc) to allow handling asynchronous events as collections. https://rxjs.dev/guide/overview