 
support for asynchronous development with a Promise based task Scheduler, several different Promise implementations (synchronous, idle, asynchronous and native runtime wrappers), await helpers, and aliases all built and tested using TypeScript.
TypeScript definitions for async-lock
Run some code when the process exits (supports async hooks and pm2 clustering)
Authoring SDK for Voyant Workflows — durable, step-based orchestrations for Voyant Cloud.
Express error handlers for JSON APIs
Prevent display sleep and enable wake lock in any Android or iOS web browser
Returns a promise with the results of a shell command
Sequential asynchronous lock-based queue for promises
Tries to execute a function and discards any error that occurs
Modern version of setInterval for promises and async functions available in Node.js and browsers.
basic websocket support for fastify
estree (and esast) utility to serialize to JavaScript
TypeScript definitions for async
MongoDB-powered background jobs.
Cacheable Utilities for Caching Libraries
Small HTTP server adapter for Lambda-style Vyriy handlers
Simple and modern async event emitter
list things in node_modules that are bundledDependencies, or transitive dependencies thereof
Offers a async require.resolve function. It's highly configurable.
Find a file by walking up the directory tree
A 1.75kB library for enhancing `html`. `ultrahtml` has zero dependencies and is compatible with any JavaScript runtime.
Low level SMTP communication layer.
SDK for integrating Braintrust with LangChain.js