"Context engineering is the delicate art and science of filling the context window with just the right information for the next step." — Andrej Karpathy. A frontier, first-principles handbook inspired by Karpathy and 3Blue1Brown for moving beyond prompt engineering to the wider discipline of context design, orchestration, and optimization.
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A curated list of practical financial machine learning tools and applications.
Everything about Web Application Firewalls (WAFs) from Security Standpoint! 🔥
- waf
- web-application-firewall
- firewall
- awesome-list
Resources to Prepare for Quant Developers/ Quantitative Researcher/ Quantitative Trader/ Quant Analyst/ Software Engineers in Quant Trading Firms, HFTs and Hedge Funds
- algorithmic-trading
- quant-finance
- quantitative-finance
- quantitative-trader
Make your first open-source contribution.
- good-first-issue
- open-source
- contributions-welcome
Digital Forensics Guide. Learn all about Digital Forensics, Computer Forensics, Mobile device Forensics, Network Forensics, and Database Forensics.
Curated tools, case studies and papers for reverse engineering websites, games, apps, binaries, firmware and protocols. Source-reviewed, English and Chinese.
- agent-skills
- ai-agents
- awesome-list
- ghidra
哈喽！龙虾 🙋♀️ Adopt from scratch and build your first claw 🦞 来领养你的第一只龙虾！
Official SGLang x Datawhale course on LLM inference: understand inference, build a mini-sglang from scratch, then read the real SGLang source and land your first PR. Available in English and Chinese.
Curated reverse-engineering tools and learning resources for binaries, apps, firmware, formats, and protocols.
- awesome-list
- binary-analysis
- ghidra
- malware-analysis
A complete guide to 3DS custom firmware, from stock to boot9strap.
- guide
- homebrew
- hacks
- nintendo-3ds
A curated list of python scripts for automating your tasks
- coding
- good-first-issue
- hacktoberfest
- python
First AI Journey for DevOps - with comprehensive learning paths, practical tips, and enterprise guidelines
Evidence-based learning engine — first-principles curricula, free-recall verification with receipts, FSRS-scheduled memory, and explorable artifacts. Learn anything; keep it.
Don't memorize ML. Understand it from first principles including Inference, Cuda, Deep Learning, Data Science and Reinforcement Learning
- cli
- deep-learning
- education
- from-scratch
Harness Engineering 101 — building AI agents from first principles. The LLM is the brain; the harness is the body.
The World's Most Comprehensive, Authoritative, and Structured Open Source Data Source Knowledge Base
- mcp
- data-sources
- ai
- awesome-list
In this project, the Pacman agent will find paths through his maze world, both to reach a particular location and to collect food efficiently. I implemented general search algorithms such as depth-first, breadth-first, uniform cost, and A* search algorithms which are used to solve navigation problems in the Pacman world.
A Wagtail project starter template – with the solution to Wagtail’s official Your first Wagtail site tutorial.