**EDR**, or **Ethereum Development Runtime** in full, is a library for creating developer tooling on top of the Ethereum Virtual Machine (EVM), such as an EVM debugger or state inspector. EDR provides a performant API, written in Rust, with bindings for t

TypeScript's 1:1 validator, optimized from editor to runtime

ANTLR 4 runtime for JavaScript written in Typescript

runtime-required

An implementation of CRC64-NVME checksum based on AWS Common Runtime https://github.com/awslabs/aws-crt-nodejs

Custom runtime for Jest which addresses memory leak issue

The core test runtime that executes on React Native devices, providing Jest-compatible APIs (describe, it, expect) and managing test collection, execution, and result reporting in native environments.

Types for the TypeScript-ESTree AST spec

Wrapper around Apple's simctl binary

Reliably determines if the code is running in Node.js

👷 workerd for macOS 64-bit, Cloudflare's JavaScript/Wasm Runtime

Javascript WebXR Runtime for Emulation

Rive React Native

Contains [zod](https://zod.dev/) schemas for the data that is stored in stack outputs and metadata. Using zod schemas allows us to generate types for the data as well as validate expected data when reading at runtime.

A set of utils for GraphQL Webpack Loader

BAML v0 — Node.js runtime for baml_client

Changes JsonValues to your custom typescript type

Workers Vitest integration for writing Vitest unit and integration tests that run inside the Workers runtime

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Speed up your Vite dev server with SWC