I have a production-ready React + Next.js application that needs a quick round of improvements. First, lingering bug fixes are blocking a smooth user flow, so I’ll ask you to audit the current code, reproduce the issues, and patch them without introducing regressions. Once stability is restored I want to move straight into feature work: • PDF generation – users should be able to export a clean, branded PDF from a specific page. Feel free to use jsPDF or another lightweight library as long as the final file keeps styling intact and works in modern browsers. • Payment gateway integration – connect a mainstream provider (Stripe preferred, but open to suggestions) so that checkout can run in test and live modes, with proper error handling and webhook callbacks. • “Site seeing” feature – a new page where visitors browse points of interest pulled from our existing API; it needs server-side rendering for SEO and a responsive card layout. New freelancers are welcome; clear, well-commented code and a concise README are more important to me than years of experience. If you can push each item to a separate Git branch and open pull requests with screenshots or short clips demonstrating the fix/feature, you will make review easy on my end. I’m ready to start immediately and can answer questions fast, so let me know your availability and expected turnaround for each deliverable.