react automatic batching fullstack dev website design dotnet core development web development services zustand react state library nextjs app development freelancer for openai integration freelancer for whisper api transcription modern web design mobile-friendly website freelancer for heroku apps maintenance nextjs ecommerce development react native reanimated react native hermes engine https://landenhmkzs.madmouseblog.com/16910387/everything-about-web-developer-need-coding