Extend the capabilities of Antigravity, Claude Code, Cursor, GitHub Copilot, and more with reusable, packaged instructions.

📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG

A lightweight and elegant React/Vue/Angular/Svelte full calendar(or big-calendar) component for the web

🤖 SDK that enhances your applications with AI capabilities

🧩 The Ultimate Toolkit for Generating Type-Safe API Clients, Hooks, and Validators.

JWT authentication middleware for Go HTTP services

The best ChatGPT that $100 can buy.

A fast, reliable Redis-backed per-group FIFO queue for Node + TypeScript with guaranteed job ordering and parallel processing across groups.

JavaScript/TypeScript-native, low-boilerplate, object-capability RPC system

Multi-Language Backend Framework that unifies APIs, background jobs, queues, workflows, streams, and AI agents with a single core primitive with built-in observability and state management.

Massimo is an API SDK client and CLI tool for creating clients for remote OpenAPI or GraphQL APIs

Open source framework for building robust type-safe distributed systems with declarative infrastructure

Create your own AI page builder

Package responsible to check if a CPF or CNPJ is valid or not and generate valids CPF and CNPJ

Go with Zod inspired simple schema validation

The missing calendar management for Laravel

Just better defaults for your Laravel projects.

Meet the calendar that changes everything

Dashboards and notebooks in a single place. Create powerful and flexible dashboards using code, or build beautiful Notion-like notebooks and share them with your team.

An open-source library for long-lived processes with realtime, persistence, and hibernation

GPSBabel: convert, manipulate, and transfer data from GPS programs or GPS receivers. Open Source and supported on MacOS, Windows, Linux, and more. Pointy clicky GUI or a command line version...

From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

A developer-friendly API for converting numerous document formats into PDF files, and more!

Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)

The headless components for Svelte.

Lightweight server monitoring hub with historical data, docker stats, and alerts.

Intent UI is a chill set of React components, built on top of React Aria Components and Tailwind CSS. Easy to customize and just copy & paste into your React projects.

Free & Opensource Laravel CRM solution for SMEs and Enterprises for complete customer lifecycle management.

Easily define just the right data for your InertiaJS views (or anywhere else you want to, uh, flexibly present).

Open-source, next-generation, and scalable URL shortener designed for modern teams.