Those are all libraries for state management. Svelte is a UI framework. It incorporates its own state management (https://svelte.dev/tutorial/reactive-assignmen

Those are all libraries for state management. Svelte is a UI framework. It incorporates its own state management (https://svelte.dev/tutorial/reactive-assignments https://svelte.dev/tutorial/reactive-assignments for local state, and https://svelte.dev/tutorial/writable-stores https://svelte.dev/tutorial/writable-stores for cross-component state), but you can also wrap third party libraries if needed.