full stack development freelancer for app refactoring and cleanup freelancer for responsive landing pages website development react suspense data fetching website design react edge computing freelancer for openai integration freelancer for langchain agent apps node.js development react transitions animations angular development react memoization optimization freelancer for fly.io depl... https://nba-hoop-troop-basketball83579.blog-kids.com/36649688/about-web-developer-online-courses-coursera