freelancer for supabase postgres apps nextjs development company react automatic batching fullstack dev freelancer for multi-tenant saas apps react devtools ai assistant react wasm integration react edge computing react micro-frontends react recoil state management reactjs freelancer nextjs app development seo expert for hire python web development react 18 features https://troyeztoh.blog-a-story.com/17435500/the-best-side-of-web-developer-part-time