react server components freelancer for supabase postgres apps react automatic batching react compiler optimization freelancer for admin dashboard ui react devtools ai assistant website design react micro-frontends dotnet mvc developer web development services freelancer for ai powered web apps jotai state management freelancer for langchain agent apps react 18 https://andersonbgjjk.thenerdsblog.com/42263593/about-web-developer-online-courses-coursera