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This week’s system design refresher:
Top 12 GitHub AI Repositories
Where Different Types of Tests Fit
How Single Sign-On (SSO) Works
How LLMs Use AI Agents with Deep Research
How Hackers Steal Passwords
These repositories were selected based on their overall popularity and GitHub stars.
OpenClaw: The always-on personal AI agent that lives on your device and talks to you through WhatsApp, Telegram, and 50+ other platforms.
N8n: A visual workflow automation platform with native AI capabilities and 400+ integrations.
Ollama: Run powerful LLMs locally on your own hardware with a single command.
Langflow: A drag-and-drop visual builder for designing and deploying AI agents and RAG workflows.
Dify: A full-stack prod-ready platform for building and deploying AI-powered apps and agentic workflows.
LangChain: The foundational framework powering the AI agent ecosystem with modular building blocks.
Open WebUI: A self-hosted, offline-capable ChatGPT alternative
DeepSeek-V3: An open-weight LLM that rivals GPT on benchmarks and is free for commercial use.
Gemini CLI: Google’s open-source tool to interact with the Gemini model right from your terminal.
RAGFlow: An enterprise-grade RAG engine that grounds AI answers in real documents with citation tracking.
Claude Code: An agentic coding tool that understands your entire codebase and executes engineering tasks from the terminal.
CrewAI: A lightweight Python framework for assembling teams of role-playing AI agents to collaborate on tasks.
Over to you: Which other repository will you add to the list?
Writing code is easy now, but testing code is hard.
Let’s take a look at where different types of tests fit.