Discover powerful GitHub repositories and understand how they actually work. We break down interesting open-source projects into their architecture, folder structure, key technologies, setup process, and the ideas you can take into your own projects.
public-apis/public-apis
The legendary community-curated list of free APIs for everything - weather, finance, music, games, geocoding, machine learning and 40+ more categories, each labeled with auth, HTTPS and CORS support.
morluto/rea
Reverse Engineer Anything (REA) is a viral open-source MCP server with 195,625 stars that connects Claude Code, Codex and Cursor to Ghidra, Hopper and IDA Pro. Learn how to decompile software with AI, connect Ghidra to Claude Code via MCP, and analyze ELF, PE, Mach-O, APK, Electron and WASM targets.
NationalSecurityAgency/ghidra
Ghidra is the NSA's free, Apache-2.0 open-source software reverse engineering framework. 89,844 stars. Learn how to set it up, analyse binaries, decompile code and compare it against IDA Pro and AI agent tooling.
usestrix/strix
Open-source AI penetration testing tool - autonomous AI hackers that run your code dynamically, find vulnerabilities, and validate them through actual proofs-of-concept.
NandhaKishorM/laya
Open-source System 1 decision engine - typed choice, score and yes/no decisions over any text in a single forward pass, in 100+ languages, with a router that picks the right checkpoint per request. A self-hosted, Jev-compatible alternative.
trycua/cua
Give AI agents computers they can use — open-source desktop automation drivers, isolated cloud desktops, local macOS VMs, and benchmarks for computer-use agents.
andrewyng/openworker
Open-source AI coworker that lives on your desktop and delivers finished work — security reviews, documents, Slack replies — with your own model and 25+ integrations.
Conway-Research/automaton
The first sovereign AI that earns its own existence - a self-running, self-replicating agent with its own crypto wallet that survives only by creating value others pay for.
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openai/openai-agents-python
A lightweight, powerful framework for multi-agent workflows with tool use, handoffs, and guardrails.
CopilotKit/OpenDots
OpenDots is a MIT-licensed template for persistent AI agents that each get their own computer, workspace and permissions. 5,579 stars. Covers per-Dot sandboxing, human-in-the-loop approval gates, MCP and Composio tools, voice calls and Slack.