Signals Creating signals should look pretty familiar to most modern developers. import { createSignal } from 'thunderous'; const [count, setCount] = createSignal(0); console.log(count()); // 0 setCount(1); console.log(count()) // 1 Signals are the new hot way to manage reactive state in your application. Combined with effects, they behave similarly to observables, but subscribers are added automatically with each effect. Unlike traditional state, where the state changes and everything runs again, signals only trigger the effects that depend on them.