sdk-js

sdk-js is a JavaScript and TypeScript SDK for building Astrid capsules. It gives developers a way to create capsule binaries that match the same WIT contract, WASI P2 Component Model output, and archive format used by the Rust SDK. The project is designed so the Astrid runtime can treat capsules the same regardless of whether they were built in JavaScript, TypeScript, or Rust. Its developer experience is shaped around familiar JavaScript patterns such as Node-style file APIs, WHATWG conventions, and event-driven behavior. The SDK adds typed ergonomics over the lower-level host ABI, making capsule development easier for web and Node developers. Its main value is bringing Astrid capsule development into the JavaScript ecosystem without changing the runtime contract.

Features

JavaScript and TypeScript capsule SDK
Shared Astrid capsule archive format
WASI P2 Component Model output
Typed host ABI ergonomics
Node-style developer experience
Companion workflow to sdk-rust

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Additional Project Details

Programming Language

TypeScript

Related Categories

TypeScript Build Tools

Registered

2026-06-09

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