A powerful todo list application for the console, using the todo.txt format.

Master programming by recreating your favorite technologies from scratch.

Create a TypeScript Action with tests, linting, workflow, publishing, and versioning

SGP4 implementations in multiple languages

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Full-sized drag & drop event calendar in JavaScript

The official React Component for FullCalendar

Web framework built on Web Standards

JavaScript Library for Astronomical Calculations

Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.

Flexible authentication solution for Rails with Warden.

MUI X: Build complex and data-rich applications using a growing list of advanced React components, like the Data Grid, Date and Time Pickers, Charts, and more!

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

The Most Complete React UI Component Library

Chakra UI is a component system for building SaaS products with speed ⚡️

A monorepo for Kintone development tools 🔧

Declarative routing for React

『りあクト！ Firebaseで始めるサーバーレスReact開発』のサンプルコードページ

Comprehensive language-agnostic guidelines on variables naming. Home of the A/HC/LC pattern.

Goqoo on kintone is a kintone-application framework that includes modern JS Libraries.

Ruby on Rails