freelancer for supabase postgres apps nextjs development company freelancer for cross-browser testing website development freelancer for admin dashboard ui react devtools ai assistant freelancer for headless ecommerce sites react component-driven development zustand react state library web development agency react query data fetching technical seo services web design and development https://deanpswvu.webbuzzfeed.com/36833738/the-2-minute-rule-for-software-developers-working