Memory Tag
ReactTypeScriptViteFirebaseFirestoreCloudflare PagesCloudflare WorkersNFC
Project Overview
A multi-tenant NFC product platform where tapping a physical tag opens a private media vault of photos, videos and messages. Built on Cloudflare Pages with a Firebase backend (Firestore, Storage, Cloud Functions gen2, custom-token auth), with an edge-cache proxy layer that cut cold page load from 1.9s to 478ms. Sold 100+ units in its first month, and now runs white-label deployments for Vishwakarma Group of Institutions and YD Cafe on isolated per-client subdomains.
Technical Implementation
Memory Tag is SoLo Developers’ own NFC product line. Each physical tag maps to a private, owner-controlled vault page. The architecture is deliberately multi-tenant: every client gets an isolated Cloudflare Pages project on <client>.solosmarttag.com, and all internal links are derived from window.location.origin so a full domain migration required zero code changes and every previously sold tag kept resolving. Performance work was the main engineering effort - replacing the Firebase client SDK handshake with direct Firestore REST reads, adding a same-origin edge-cache proxy on Pages Functions, and route-level code splitting that took the gallery bundle from 886 KB to 3 KB.
Key Deliverables
- Cold page load cut 1.9s to 478ms (126ms warm) via edge-cache proxy
- Gallery bundle reduced 886 KB to 3 KB with route-level code splitting
- 100+ units sold in the first month
- Multi-tenant white-label deployments on isolated client subdomains