YuheiNakasaka

awesome-design-md. A collection of DESIGN.md files analysis by popular brand design systems. Drop one into your project and let coding agents generate a matching UI.

awesome-design-md-jp. 日本語UIをAIエージェントに正しくつくらせるためのDESIGN.md集。Japanese DESIGN.md collection for AI agents — extending Google Stitch format with CJK typography.

software-papers. 📚 A curated list of papers for Software Engineers

skills. Skills for Real Engineers. Straight from my .claude directory.

design.md. A format specification for describing a visual identity to coding agents. DESIGN.md gives agents a persistent, structured understanding of a design system.

superpowers. An agentic skills framework & software development methodology that works.

kamae-ts. TypeScript

reviewable-html-workbench. Claude Code / Codex CLI plugin for generating reviewable HTML documents with preview, inline review comments, and agent feedback ingestion.

book-to-skill. Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.

claude-certified-architect. This repository contains study materials for the **Claude Certified Architect — Foundations** certification.

codd-dev. CoDD: Coherence-Driven Development — Claude Code plugin for cross-artifact change impact analysis

rigor. Inference-first static analysis for Ruby

modern-web-guidance-src. TypeScript

rubydex. A high-performance static analysis toolkit for Ruby

spinel. C

astro. ASTro: AST-based Reusable Optimization framework

pretext. Fast, accurate & comprehensive text measurement & layout

merjs. A Zig-native web framework. File-based routing, SSR, type-safe APIs, WASM client interactivity. No Node. No npm. Just zig build serve.

how. "how" command for zsh that prepares you the command line

gstack. Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

mo. mo is a Markdown viewer that opens .md files in a browser.

copilot-sdk. Multi-platform SDK for integrating GitHub Copilot Agent into apps and services

cli. Google Workspace CLI — one command-line tool for Drive, Gmail, Calendar, Sheets, Docs, Chat, Admin, and more. Dynamically built from Google Discovery Service. Includes AI agent skills.

markdown-to-zundamon. TypeScript

cmux. Open source Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents. Built for multitasking, organization, and programmability.

claude-skill-refactoring-ui. ⚠️ ARCHIVED — This skill has been moved to https://github.com/opkod-france/opkod-claude-code-plugins

claude-code-pm-course. Interactive course teaching Product Managers how to use Claude Code effectively

sabos. Rust

architecture-decision-record. Architecture decision record (ADR) examples for software planning, IT leadership, and template documentation

skills. The open agent skills tool - npx skills

zoxide. A smarter cd command. Supports all major shells.

json-render. The Generative UI framework

agent-browser. Browser automation CLI for AI agents

filebased-hono. TypeScript

supercookie. ⚠️ Browser fingerprinting via favicon!

terrazzo. Use DTCG tokens JSON to generate code for web, mobile, native apps, and more

spec-kit. 💫 Toolkit to help you get started with Spec-Driven Development

fizzy. Kanban as it should be. Not as it has been.

nixos-config. General purpose Nix starter template for macOS or NixOS w/ step-by-step instructions

vscode-custom-ui-style. VSCode extension that modify CSS and JS code in both editor and webview, unify global font family, setup background image and Electron BrowserWindow options, add your custom CSS or JS code, and even patch files in other VSCode extensions.

zenn-editor. Convert markdown to html in Zenn format

BetterDisplay. Unlock your displays on your Mac! Flexible HiDPI scaling, XDR/HDR extra brightness, virtual screens, DDC control, extra dimming, PIP/streaming, EDID override and lots more!

AthenaEnv. A complete Javascript environment for creating homebrew applications and games on PlayStation 2.

railserd. An Interactive web-based ERD generator for Ruby on Rails.

rubyhackchallenge. Ruby

web-interface-guidelines. Guidelines for building interfaces on the Web.

ts-bench. Benchmark CLI for comparing AI coding agents on TypeScript workloads.

rv. 💎💨 Extremely fast Ruby version and gem manager

deck. deck is a tool for creating deck using Markdown and Google Slides.

web. Phlex components for your Rails app

serena. A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

bibi. A state-based form hook.

progit2-ja. CSS

core. A toolchain for building scalable, enterprise-ready component systems on top of TypeScript and Web Component standards. Stencil components can be distributed natively to React, Angular, Vue, (+ more) and traditional web applications from a single, framework-agnostic codebase.

markitdown. Python tool for converting files and office documents to Markdown.

Backlog.md. Backlog.md - A tool for managing project collaboration between humans and AI Agents in a git ecosystem

SuperClaude_Framework. A configuration framework that enhances Claude Code with specialized commands, cognitive personas, and development methodologies.

junit-formatter. A JUnit XML report exporter for Elixir's ExUnit

textlint. textlint is the pluggable linter for natural language text.

batch-loader. :zap: Powerful tool for avoiding N+1 DB or HTTP queries

gemini-cli. An open-source AI agent that brings the power of Gemini directly into your terminal.

act. Run your GitHub Actions locally 🚀

claude-cookbooks. A collection of notebooks/recipes showcasing some fun and effective ways of using Claude.

sepa9th_book. 実践ソフトウェアエンジニアリング（第9版）非公式サポートページ

unicode-display_width. Monospace Unicode and Emoji character width in Ruby

edit. We all edit.

picoruby. PicoRuby is the smallest Ruby implementation for one-chip microcontrollers

activeresource. Connects business objects and REST web services

parser. A Ruby parser.

rubocop-extension-generator. A generator of RuboCop's custom cops gem.

guides. A guide for programming in style.

mcp-rb. A lightweight Ruby framework for building MCP servers with a Sinatra-like DSL

realtime-transcription-fastrtc. Real Time Speech Transcription with FastRTC ⚡️and Local Whisper 🤗

hpapp. Go

exp-twitter-clone-build-by-aider-and-deepseek-r1. This is an experiment in code generation using Aider with DeepSeek R1(Free) via OpenRouter.

bedrock-engineer. Bedrock Engineer is an AI assistant of software development tasks. This tool combines the capabilities of a large language model with practical file system operations, web search functionality.

OpenHands. 🙌 OpenHands: AI-Driven Development

activeagent. ActiveAgent Rails framework for Agent Apps

liam. Automatically generates beautiful and easy-to-read ER diagrams from your database.

react-scan. Scan and fix React performance issues

reek. Code smell detector for Ruby

DeepSeek-R1.

erd_map. Visualize, explore, and interact with your Rails application's models and associations with ease.

ar_sync. ActiveRecord-JavaScript Sync

reline. The compatible library with the API of Ruby's stdlib 'readline'

mitmproxy2swagger. Automagically reverse-engineer REST APIs via capturing traffic

utvideo. Ut Video Codec Suite - fast lossless video codec

contracts.ruby. Contracts for Ruby.

ghostty. 👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.

packwerk. Good things come in small packages.

yomitoku. YomiTokuはAIを活用した日本語文書解析エンジンを提供するPythonパッケージです。 Yomitoku is an AI-powered document image analysis package designed specifically for the Japanese language.

pitchfork. Ruby

just. 🤖 Just a command runner

json. JSON implementation for Ruby

cline. Autonomous coding agent as an SDK, IDE extension, or CLI assistant.

mission_control-jobs. Dashboard and Active Job extensions to operate and troubleshoot background jobs

askrepo. Source code reading with LLM.

tty-table. A flexible and intuitive table generator

rubyevents. On a mission to index all Ruby events.

pyxel. A retro game engine for Python

phlex. Object-oriented views in Ruby.

standard. Ruby's bikeshed-proof linter and formatter 🚲

tailwindcss-rails. Ruby

bolt.new. Prompt, run, edit, and deploy full-stack web applications. -- bolt.new -- Help Center: https://support.bolt.new/ -- Community Support: https://discord.com/invite/stackblitz

medi-xplorer. MediXplorer は社会保険診療報酬支払基金から提供される医科診療行為マスターを検索・閲覧するためのアプリケーションです。

view_component-contrib. A collection of extension and developer tools for ViewComponent

view_component. A framework for building reusable, testable & encapsulated view components in Ruby on Rails.

ecspresso. ecspresso is a deployment tool for Amazon ECS

rrweb. record and replay the web

inertia-rails. The Rails adapter for Inertia.js.

s2geometry. Computational geometry and spatial indexing on the sphere

UFO. UFO³: Weaving the Digital Agent Galaxy

self-operating-computer. A framework to enable a multimodal model to operate a computer.

logseq. A privacy-first, open-source platform for knowledge management and collaboration. Download link: http://github.com/logseq/logseq/releases. roadmap: https://logseq.io/p/NX4mc_ggEV

yournextstore. AI-Native Open-Source Next.js commerce. Powered by Stripe. Ultra fast with typesafe Commerce SDK. Built for AI development (Claude, Codex, Cursor).

nanoGPT. The simplest, fastest repository for training/finetuning medium-sized GPTs.

field_test. A/B testing for Rails

dependabot-core. 🤖 Dependabot's core logic for creating update PRs.

ruby-jit-challenge. Tutorial to write a Ruby JIT

rails-new. Create Rails projects without Ruby installed

audited. Audited (formerly acts_as_audited) is an ORM extension that logs all changes to your Rails models.

thruster. Go

solid_queue. Database-backed Active Job backend

aozorahack. aozorahack全般に関するissue/wiki用リポジトリです

falcon. A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS.

ruby-on-whales. Ruby on Whales example and templates

docker-rails-base. Optimized Docker image for Rails applications

lookbook. A UI development environment for Ruby on Rails apps

templatus-hotwire. Opinionated template for starting new web applications with Ruby on Rails and Hotwire

annict. A platform for anime addicts.

stimulus-sortable. A Stimulus controller to reorder lists with drag-and-drop.

docked. Running Rails from Docker for easy start to development

anki. Anki is a smart spaced repetition flashcard program

create-liff-app. Start developing LIFF application with a simple CLI command.

safetest. TypeScript

wouter. 🥢 A minimalist-friendly ~2.2KB routing for React and Preact

router. 🤖 A client-first, server-capable, fully type-safe router and full-stack framework for the web (React and more).

jj. A Git-compatible VCS that is both simple and powerful

remix-spa-example. Remix SPA mode + Firebase で「しずかなインターネット」の真似サイトを作った。

honox. HonoX - Hono based meta framework

warp. Warp is an agentic development environment, born out of the terminal.

remix-ssg. A CLI for building static sites with Remix

raylib-cr. LibRaylib Bindings for Crystal.

raylib. A simple and easy-to-use library to enjoy videogames programming

rubyboy. A Game Boy emulator written in Ruby

recaptcha. ReCaptcha helpers for ruby apps

prisma-fabbrica. Prisma generator to define model factory

awesome-engineering-games. A curated list of engineering-related video games rated Very Positive or higher on Steam

denokv. A self-hosted backend for Deno KV

sonik. TypeScript

db_tutorial. Writing a sqlite clone from scratch in C

wasi-vfs. A virtual filesystem layer for WASI.

skyclad. An experimental ATP/Bluesky client app for iOS and Android by Flutter.

media-kit. A cross-platform video player & audio player for Flutter & Dart.

kv-asset-handler. Routes requests to KV assets

remix-flat-routes. Remix package to define routes using the flat-routes convention

Taiwan-LLM. Traditional Mandarin LLMs for Taiwan

remix-auth-form. A Remix Auth strategy for working with forms.

octox. Unix-like OS in Rust inspired by xv6-riscv

rjvm. A tiny JVM written in Rust. Learning project

social-app. The Bluesky Social application for Web, iOS, and Android

typescript-book. The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source.

atproto. Social networking technology created by Bluesky

indie-stack. The Remix Stack for deploying to Fly with SQLite, authentication, testing, linting, formatting, etc.

percollate. A command-line tool to turn web pages into readable PDF, EPUB, HTML, or Markdown docs.

home_widget. Flutter Package for Easier Creation of Home Screen Widgets

blockdom. A fast virtual dom library

normalize-japanese-addresses. オープンソースの住所正規化ライブラリ。

rye. a Hassle-Free Python Experience

bark. 🔊 Text-Prompted Generative Audio Model

Retrieval-based-Voice-Conversion-WebUI. Easily train a good VC model with voice data <= 10 mins!

React-Application-Architecture-for-Production. React Application Architecture for Production, published by Packt

next.js. The React Framework

voice-generator-webui. A multi-speaker, multilingual speech generation tool

MMVC_Trainer. AIを使ったリアルタイムボイスチェンジャー(Trainer)

gistpad. 📘 VS Code extension for managing and sharing code snippets, notes and interactive samples using GitHub Gists

voice-changer. リアルタイムボイスチェンジャー Realtime Voice Changer

compress-gpt. Self-extracting GPT prompts for ~70% token savings

sharegpt. Easily share permanent links to ChatGPT conversations with your friends

pulumi-ai. TypeScript

chroma. Search infrastructure for AI

AgentGPT. 🤖 Assemble, configure, and deploy autonomous AI Agents in your browser.

DeepSpeed. DeepSpeed is a deep learning optimization library that makes distributed training and inference easy, efficient, and effective.

poetry. Python packaging and dependency management made easy

minGPT. A minimal PyTorch re-implementation of the OpenAI GPT (Generative Pretrained Transformer) training

AutoGPT. AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.

chatbot-ui. AI chat for any model.

viper. Code for the paper "ViperGPT: Visual Inference via Python Execution for Reasoning"

llama_index. LlamaIndex is the leading document agent and OCR platform

chatgpt-retrieval-plugin. The ChatGPT Retrieval Plugin lets you easily find personal or work documents by asking questions in natural language.

pgvector. Open-source vector similarity search for Postgres

Japanese-Alpaca-LoRA. Jupyter Notebook

superflare. A full-stack toolkit for Cloudflare Workers.

SortedSet. Python

chat-langchain. TypeScript

prompts.chat. f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.

fast-check. Property based testing framework for JavaScript (like QuickCheck) written in TypeScript

stable-diffusion-webui. Stable Diffusion web UI

stanford_alpaca. Code and documentation to train Stanford's Alpaca models, and generate the data.

html5-qrcode. A cross platform HTML5 QR code reader. See end to end implementation at: https://scanapp.org