How I built a Notion-Style Link-in-Bio Builder with Next.js 15 & Vercel Custom Domains

Hey devs! 👋

I recently launched SnapBio (https://bio.puretoolhub.com), a free Notion-style link-in-bio builder.

Here is the tech stack and architectural highlights:

• Frontend: Next.js 15 App Router, React 19, Tailwind CSS
• Multi-Tenant Routing: Custom domain verification via Vercel Edge API
• Auth & DB: Supabase PostgreSQL with Google OAuth
• Payments: Stripe subscription for Pro white-label
• SEO: 7-language hreflang alternates + Schema.org JSON-LD

Check out the live tool here: SnapBio - Notion-Style Link-in-Bio

Happy to answer any questions about the multi-tenant architecture!