Next.js Multilingual SPA Website

I’m looking for a solo freelancer to build a custom single-page website for my app using Next.js paired with Sanity CMS. The look should be clean and minimalist, fully responsive, and unmistakably tailored to the product—not a recycled template.

Multilingual scope
The site must ship with static builds for six languages—English, Spanish, French, Arabic, Russian, and Chinese. I don’t want a runtime locale switcher or any third-party translation API; each language can live under its own path (e.g., /es, /fr). Performance and SEO come first, so make sure the pages are pre-rendered and lean.

Content status
Roughly half of the copy and visuals are ready to paste in; I’ll share them on day one. I’ll need your help tightening the remaining micro-copy and selecting or suggesting images where gaps appear. Once the site is wired to Sanity, I should be able to tweak any text, hero graphic, or FAQ myself without touching code.

Key requirements
• Next.js 14 (or latest stable) with app router and static export
• Sanity v3 studio with custom schema matching the site sections
• Pixel-perfect responsiveness across desktop, tablet, and mobile
• Lighthouse score in the green for performance, accessibility, SEO, best practices
• Delivery in 5–7 calendar days, including a quick hand-off session

Hand-over package
1. Git repo containing the Next.js project and Sanity studio
2. .env.example plus clear setup instructions
3. Production-ready build folder for quick deployment to Vercel or Netlify
4. A short loom or markdown guide showing me how to update content and translations

Please bid only if you are an individual developer. Agency pitches and AI-generated one-liners will be skipped straight away. I’m around for fast feedback and can supply assets immediately, so we can hit the ground running and launch within the week.