A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding). Translations: 🇺🇸 🇨🇳 🇯🇵 🇮🇹 🇰🇷 🇷🇺 🇧🇷 🇪🇸
Repository Index
61,275 visible repositories in the index
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Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.
- claude-code
- obsidian
- second-brain
- claude-code-skill
🪐 Markdown with superpowers: from ideas to papers, presentations, websites, books, and knowledge bases.
- markdown
- markup-language
- paper
- scripting-language
A curated list of free public APIs — searchable, community-maintained, with a free JSON API.
- public-api
- api
- apis
- api-list
API Support for your favorite torrent trackers
Translated:heart: University of Science and Technology of China course resources
- ustc
- computer-science
- course
- share
A fast, cross-platform build tool inspired by Make, designed for modern workflows.
- go
- make
- makefile
- task
A beautiful, simple, clean, and responsive Jekyll theme for academics
- jekyll
- jekyll-theme
- academic
- academic-website
Bridge local AI coding agents (Claude Code, Cursor, Gemini CLI, Codex) to messaging platforms (Feishu/Lark, DingTalk, Slack, Telegram, Discord, LINE, WeChat Work). Chat with your AI dev assistant from anywhere — no public IP required for most platforms.
Rust bindings for the Python interpreter
- rust
- python
- binding
- ffi
Create web-based user interfaces with Python. The nice way.
The world's #1 JavaScript library for rich text editing. Available for React, Vue and Angular
- javascript
- editor
- rich-text-editor
- wysiwyg
A guide on how to be a Programmer - originally published by Robert L Read
- learning
- programming
Machine learning, in numpy
- machine-learning
- neural-networks
- topic-modeling
- gaussian-mixture-models
Image annotation with Python. Supports polygon, rectangle, circle, line, point, and AI-assisted annotation.
- image-annotation
- python
- computer-vision
- annotations
Event-driven network library for multi-threaded Linux server in C++11
A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.
- full-stack
- open-source
- saas
- nodejs
TranslatedCollecting free API services, being an API mover
- api
- freeapi
BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr
- email-marketing
- mailserver
Embeddable Postgres with real-time, reactive bindings.
Premium Queue package for handling distributed jobs and messages in NodeJS.
Paradev is an open-source Codex App and Conductor alternative. Orchestrate an army coding agents in parallel with your own subscriptions.
:satellite: Simple and ready-to-use tutorials for TensorFlow
- tensorflow
- python
- deep-learning
- deep-learning-tutorial
Get started quickly with Next.js, Postgres, Stripe, and shadcn/ui.