A generic, fully-typed state machine for food delivery, logistics, ride-hailing, e-commerce, or any order lifecycle. Zero runtime dependencies.

State management made super simple

A finite state machine library

A framework-agnostic, storage-agnostic payment toolkit — one PaymentProvider port with Stripe, 虎皮椒 (xunhupay), and manual adapters, currency/region routing, an idempotent order state machine, and receipts. Runs on Node, Cloudflare Workers, Deno, and Bun.

AWS Lambda adapter for HyperFrames distributed rendering — handler, client-side SDK, and CDK construct.

Core logic for the checkbox widget implemented as a state machine

Explode async and generator functions into a state machine.

XState for finite state machines

Core logic for the cascade-select widget implemented as a state machine

A finite state machine iterator for JavaScript

`@aws-amplify/ui-react-core` is a React platform agnostic utility library for Amplify UI internal usage in `@aws-amplify/ui-react*` and `@aws-amplify/ui-react-native*` namespaced packages.

Amazon States Language validator

Native interface for modules that optionally depend on expo-updates, e.g. expo-dev-launcher.

A finite state machine (FSM) implementation for node.js

visx tooltip

Persistent append-only chunked lists with bounded copying and JSON checkpoint validation

JavaScript wrapper for hover and any-hover media queries

finite state machine with async callbacks

Detect if the browser supports the touch events api

State machine utilities for the Reach UI library.