I need a full-stack web developer to build an online QR code generator that rivals qr-generator.ai while catering to my local market. The core of the project is a single-page app where visitors can instantly create QR codes for URLs & text, Emails & phone numbers, plus Wi-Fi & more. Key functionality • Real-time customization: users must be able to recolor the code, drop in their own logos, and switch among predefined or free-form shapes. • Download engine: every finished QR must export flawlessly as PNG, SVG, and PDF. • Device-agnostic UI: the interface has to feel native on mobile, tablet, and desktop, with fast preview updates. • Clean, intuitive workflow: no clutter—just step-by-step inputs, live preview, and one-click download. • Optional extras: user accounts that store generation history and let people return to old designs; I’m open to your suggestions on other features that would give us an edge in my country. Technical expectations You can pick the stack—React, Vue, Svelte, or vanilla JS on the front, plus any modern backend (Node, Django, Laravel, etc.). I’m fine with either a mature QR library (e.g., qrcode.js, goqr, Zxing) or an API, as long as generation is instant and works offline if the API drops. CSS should be clean and accessible; responsiveness is a must. Please plan for SEO-friendly routing and analytics hooks from day one. Deliverables 1. Source code in a public or private repo with commit history. 2. Deployed, SSL-secured site ready for traffic. 3. Admin notes covering setup, environment variables, and scaling considerations. 4. Short screen-capture walkthrough proving each feature works. Timeline is flexible but I’d like a realistic milestone schedule. When you respond, link to two or three comparable tools you’ve built, outline the tech you propose, and tell me one idea that would make our generator uniquely appealing here.