A collection of 177 validated scientific skills for AI agents, covering biology, chemistry, medicine, and data analysis, plus 100+ scientific database references.
A routing pack that tells AI coding agents which reverse-engineering or pentest methodology and tools to use for APKs, binaries, JS crypto, PCAPs, and CTFs.
An open, bilingual Chinese-language book-guide on lifelong learning in the AI era, covering English study, AI learning, real projects, and personal recovery.
An open-source, animated, illustrated tutorial on data structures and algorithms with runnable code in many languages.
Curated list and one-command installer for 750+ open-source intelligence and security tools across 50 categories.
A large curated guide covering self-hosting tools, hardware, and setup walkthroughs for running software on your own servers.
A JSON dataset of 1,324 fitness exercises with animation GIFs, thumbnails, muscle-group and equipment data, and multilingual instructions.
A free, self-paced computer science curriculum assembled from online courses and books, modeled on undergraduate CS degree requirements.
A set of Claude Code and Codex skills that run value-investing company research using four investors' methodologies via multi-agent analysis.
A family of 17 agent skills that help shape the research storyline of CCF-A papers, from idea and literature through writing, figures, review, and rebuttal.
A free 9-week course teaching data engineering by building an end-to-end data pipeline using tools like Docker, Terraform, Kafka, Spark, and dbt.
A ready-to-use offline Simplified Chinese Rime input method configuration with maintained dictionaries and many input schemes.
Open-source LaTeX textbook teaching introductory systems programming in C on Linux and POSIX, used in UIUC's CS 341 course.
A study guide and interview-prep curriculum for AI/ML technical roles at big tech, covering coding, ML breadth, system design, and behavioral rounds.
Patches popular programming fonts with thousands of extra icon glyphs from Font Awesome, Devicons, Octicons and other iconic font sets.
A curated, community-maintained list of Node.js best practices covering architecture, error handling, testing, security, and more.
A collaboratively written set of best-practice rules and guidelines for writing modern C++ (C++11 and newer).
A curated, community-maintained list of Swift libraries, guides, tools, and resources organized by category.
A community collection of CSS themes for restyling the Spotify desktop client through the Spicetify command-line tool.
Website and course materials for The Missing Semester, covering practical CS skills like shell, tooling, and version control that universities often skip.
Homebrew tap containing the default cask definitions that install prebuilt macOS and Linux apps, fonts, and CLI tools via brew.
Collection of dozens of minimal bare-metal x86 operating system examples for learning low-level system programming, tested in QEMU and on real hardware.
A collection of 352 HTML games, each packaged as a single file that runs without an internet connection.
A free online book teaching Vim and Vimscript, covering core editing concepts from beginner basics to advanced features and plugin writing.
Community-maintained set of Microsoft Intune configuration baselines for Windows devices, built from CIS, NCSC, ACSC and Microsoft guidance.
Automated GitHub Actions pipeline that scrapes and publishes NFL datasets as releases for the nflverse R packages.
A sample Spring Boot web application modeling a veterinary clinic's pet, owner, and visit management.
A curated list of space-related code, APIs, datasets, and resources maintained by The Orbital Index.
Interactive Jupyter-based practice platform with 41 PyTorch problems, such as implementing softmax, attention, and GPT-2 from scratch, with automated grading.