Open source. Open possibilities.

ET is a dual-end game development framework based on Unity3D client and C# server, supporting distributed architecture, Actor messaging, coroutines, hot updates, and AI-assisted development.

Nakama is an open-source game backend server from Heroic Labs. It provides users, storage, social graph, chat, realtime and turn-based multiplayer, leaderboards, tournaments, parties, purchase validation, notifications and runtime code.

PostgREST serves a fully RESTful API from any existing PostgreSQL database. It handles JWT authentication, delegates authorization to database roles, supports schema-based versioning, generates OpenAPI docs, and pushes data validation and JSON serialization into SQL.

Elysia is an ergonomic TypeScript web framework powered by Bun, focusing on end-to-end type safety and developer experience.

Express is a fast, unopinionated, minimalist web framework for Node.js, featuring robust routing, HTTP helpers, content negotiation, and support for 14+ template engines.

Gin is a high-performance HTTP web framework for Go, featuring a Martini-like API with significantly better performance. It provides zero-allocation routing, middleware support, JSON validation, route grouping, and built-in error management for building REST APIs and microservices.

Vapor is an HTTP web framework for Swift, providing an expressive foundation for building websites, APIs and cloud projects. It targets Swift 6.0+, ships under the MIT license, and is backed by an active Discord community plus documented guides.

Go CDK provides stable, idiomatic Go interfaces for common cloud services like storage, databases, and pub/sub. It enables writing portable code that runs on any major cloud provider (AWS, GCP, Azure) without vendor lock-in.