react concurrent mode react automatic batching nextjs seo optimization freelancer for multi-tenant saas apps mern stack development company web programming hire full stack developer react micro-frontends web design company custom web application development zustand react state library freelancer for machine learning integration web development firm react hydration strategies freelancer https://software-developers-near89124.rimmablog.com/38198143/dotnet-maui-cross-platform-apps-no-further-a-mystery