Open source. Open possibilities.

The second edition of the You Don't Know JS Yet book series, offering free online chapters and purchasable volumes on JavaScript core mechanisms, including Get Started and Scope & Closures.

Lightweight Python execution pipeline library that uses @action decorators to define tasks, supports retry, parallel execution, observability, and one-click deployment to 34+ cloud platforms including AWS Lambda, GCP Cloud Run, and Kubernetes.

Actix Web is a powerful, pragmatic, and fast Rust web framework supporting HTTP/1.x and HTTP/2, WebSockets, streaming, middleware, and content compression.

An asynchronous Python client for the Open Data Platform of Liège (Belgium). It currently exposes the disabled parking spaces and garages datasets through a simple async API, and its code base is designed to be extended to other datasets from the same platform.

Wasat is a type-hinted asynchronous Python client library for the Gemini Protocol, featuring streaming support and flexible certificate verification.

Embassy is a modern embedded framework using Rust and async, offering safe, efficient multitasking with HALs for various microcontrollers, time, networking, Bluetooth, USB, and more.

FastAPI is a modern Python web framework for building APIs with standard type hints, featuring automatic OpenAPI documentation, data validation via Pydantic, high performance via Starlette, and interactive Swagger UI and ReDoc interfaces.

Asynchronous HTTP client/server framework for asyncio and Python, supporting WebSockets, middleware, and routing.

Starlette is a lightweight ASGI framework for building async Python web services, offering WebSocket support, background tasks, and modular components with minimal dependencies.

An asynchronous Python client for Stockholm's Open Data Platform API. It currently retrieves disabled-parking locations (about 2045) with address, district, coordinates and validity dates, requires an API key, and is structured so other datasets from the same platform can be added.

TanStack Query is an async state management library for the web that simplifies fetching, caching, synchronizing and updating server state, with adapters for React, Solid, Svelte and Vue.

Seastar is an event-driven C++ server-side framework built on futures for writing non-blocking asynchronous code. It offers a userspace TCP/IP stack, optional DPDK support, and multiple build modes, and underpins projects such as ScyllaDB and Redpanda.