A small language in which a business rule is a table — fees, taxes, discounts. rulec proves there are no gaps, conflicts or dead rows, returns the exact input when there are, and only then generate…

A native compiler for a statically typed subset of Python, for desktop apps.

Go SSR web framework — Preact templates, htmx interactions, Islands hydration. Built on net/http.

A JS/TS runtime with soundness-gated AOT native compilation.

A library for calling Python from Go without Cgo

Cross-platform window management and OS integration library for Java

Java bindings for Skia

WSGI/ASGI HTTP server powered by the BEAM. Mix the best of Python (AI, web apps) with Erlang (distribution, concurrency, resilience).

A gradually typed Ruby subset compiler with Hindley-Milner type inference, dual LLVM/JVM backends, and seamless Java interop.

A Python application server implemented in Envoy

a lightweight durable execution framework for Ruby that runs as a library in your application

a Go LLM client library that provides a unified API across multiple providers

Durable Execution Framework for Go

a durable execution framework for Python

A modern static site generator by the Material for MkDocs team

High-performance WSGI/ASGI server powered by Rust

The Python implementation of Connect: Protobuf RPC that works.

Go RPC library with dynamic protobuf generation

A Model Context Protocol (MCP) server that provides D2 diagram generation and manipulation capabilities.

Convert any REST API or gRPC service into MCP tools for AI assistants

A Go adapter that bridges LangChain Go tools with Model Context Protocol (MCP) servers.

A curated list of awesome things related to Pydantic! 🌪️

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

Data validation using Python type hints

The Go implementation of Connect: Protobuf RPC that works.

The best way of working with Protocol Buffers.

A library to convert Pydantic models to TypedDict