A lightweight and elegant JavaScript color picker. Written in vanilla ES6, no dependencies. Accessible.

JSON Schema validator. Supports drafts 4, 6, 7, 2019-09, 2020-12, OpenAPI 3.0, and OpenAPI 3.1.

openapi_first is a Ruby gem for request / response validation and contract-testing against an OpenAPI API description. It makes APIFirst easy and reliable.

Synchronize Capybara commands with application JavaScript and AJAX requests

Generate your next Rails app interactively! This template includes production-ready recommendations for testing, security, developer productivity, and modern frontends. Plus optional Vite support! ⚡️

This repo walks through an example of logging into a site with 2FA enabled and Google Authentication. The authentication method used is via firebase using indexedDB.

Keep Your Hashes Classy (a lightweight Hash validation gem)

Configurable and extensible validator/linter for OpenAPI documents

Allows identical sidekiq jobs to be processed with a single background call

Action Policy integration for GraphQL

Find time-consuming database queries for ActiveRecord-based Rails Apps

Use React, Vue, Svelte, and other components with Hotwire

WebMSX - Online MSX Emulator

A NES Emulator written in Crystal

BinData - Reading and Writing Binary Data in Ruby

A NES emulator written in Ruby

A multiplatform NES emulator written in Kotlin

A Nes Emulator written in Scala

🎮 NES Emulator written in Haskell

Multiple game consoles emulator written in Rust

PC Engine(TurboGrafx-16) Emulator written in Javascript

cc65 - a freeware C compiler for 6502 based systems

ファミコンで始める ~ 6502マシン語ゲームプログラミング

Lightweight Ruby

ファミコンエミュレーターを作る！

A mini book on writing NES emulator using rust lang

A Game Boy emulator written in Ruby

Next Generation Server Toolkit. Create web servers with everything you need and deploy them wherever you prefer.

Catches exceptions and retries each request a limited number of times