The Great Hall

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

Open-source AI job search: scan job portals, evaluate listings into a structured A-H report with a global 1-5 score, tailor your CV, track applications — runs locally in your AI coding CLI (Claude Code, Codex, OpenCode, Antigravity…)

The job search that runs on your machine. AI job application framework built on Claude Code: evaluate postings, tailor CVs, write cover letters, prep interviews. Fork it and own it.

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

Complete API layer for private AI applications on local models: RAG, skills, tools, MCP, text-to-sql, and more. Works with any OpenAI-compatible inference server.

❄️ ChatGPT Desktop Application (Mac, Windows and Linux)

LlamaIndex is the document processing platform for AI

🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.

A next.js web application that integrates AI capabilities with draw.io diagrams. This app allows you to create, modify, and enhance diagrams through natural language commands and AI-assisted visualization.

FinceptTerminal is a modern finance application offering advanced market analytics, investment research, and economic data tools, designed for interactive exploration and data-driven decision-making in a user-friendly environment.

an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.

Mastra is the modern TypeScript framework for AI-powered applications and agents.

The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while controlling costs and managing access to models and data.

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.

Dapr is a portable runtime for building distributed applications across cloud and edge, combining event-driven architecture with workflow orchestration.

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.

☁️ Build multimodal AI applications with cloud-native stack

Open-source gym & body-weight tracker, now in the App Store (iPhone + Apple Watch) and as an Android APK. Plan routines, log workouts, see which muscles are trained, import from Strong/Hevy/FitNotes. Self-host it or use it on the phone alone.

Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

A Collection of application ideas that can be used to improve your coding skills ❤.

AG-UI: the Agent-User Interaction Protocol. Bring Agents into Frontend Applications.