front end developer nextjs developer for hire nextjs seo optimization website development freelancer for admin dashboard ui freelancer for pixel perfect development web design company react recoil state management freelancer for machine learning integration seo expert for hire freelancer for langchain agent apps react hydration strategies vue.js development mobile-friendly https://softwaredevelopersreplace82346.blog4youth.com/39928552/the-greatest-guide-to-nextjs-with-supabase-backend