Python

• urlshortener-python - A simple python-implemented URL shortener and some system-level thinkings

Go

• urlshortener-go - A Go implementation of URL shortener
• go-ip-rate-limiter - A Go practice for demonstrating IP rate limitation functionality
• quad9-as-a-service - Make Quad9 as a restful HTTP service with in-memory caching ability.
• cache-practice - 情境練習，根據情境假設實作 cache 機制

React.js

• inertia-web - A web application for simplifying the maintenance effort of your index investing plan.
• urlshortener-react - A single simple react page for demonstrating the urlshortener-python