Tech companies in Japan that hire remote workers.

A NES emulator written in Ruby

A JIT for Ruby, implemented in pure Ruby

A simple UI for browsing and inspecting diffs, and an API for runner scripts to submit screenshots to and receive a pass or fail in real time. (For use with Wraith, Backstop, Selenium etc)

A pure Ruby HTML5-compliant parser with CSS selector and XPath 1.0 traversal

"「GraphQL」徹底入門 ─ RESTとの比較、API・フロント双方の実装から学ぶ" のサンプルコード

手を動かせばできるLLVMバックエンド チュートリアル（WIP）

GitHub Flowの日本人向け図解

ターミナルで出来る音ゲー

bytesize-icons as Custom Elements (v1)