freelancer for supabase postgres apps front end developer react automatic batching nextjs seo optimization react signals state management freelancer for multi-language app support freelancer for headless ecommerce sites freelancer for biometric time tracking freelancer for ai powered web apps web development agency react query data fetching python web development https://software-developers-in-in37902.theideasblog.com/36949551/the-2-minute-rule-for-software-developers-working