Brand Intelligence Platform

Sigil & Sans

A premium brand intelligence platform that turns any URL into a structured design report. It blends an Archival Modernism aesthetic with Gemini 2.5 Flash analysis, Next.js 16, and a monetized Node.js/Express backend to deliver editorial-grade insights instantly.

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Deliverables

-Brand strategy and visual identity extraction system framed by an Archival Modernism presentation.
-Next.js 16 + React 19 + Tailwind 4 shell powering brand kit generation, AI analysis, and history archives.
-Node.js + Express 5 API with PostgreSQL, Drizzle ORM, and Stripe billing backing subscriptions and favorites.

Highlights

-Archival Modernism visual language with Crimson Pro and JetBrains Mono typography.
-Soft brutalist grid layouts built with Next.js 16 + React 19 + Tailwind 4.
-Node.js + Express 5 stack paired with PostgreSQL, Drizzle ORM, and Stripe billing.

Core Features

-Universal Brand Extraction - convert any URL into palettes, fonts, logos, and usage notes.
-AI-Powered Brand Analysis - Gemini 2.5 Flash evaluates personality, tone, and color psychology.
-Flexible Asset Management - export assets individually or as curated ZIP archives.
-Personal Archive - save favorite brands, attach notes, and resurface history instantly.
-Subscription Economy - Pro tier unlocks advanced AI insights and unlimited history.

Technical Architecture

-Frontend: Next.js 16 App Router + React 19 + Tailwind 4 for fluid, editorial UX.
-Backend: Node.js + Express 5 API with Drizzle ORM on PostgreSQL.
-AI Services: Gemini 2.5 Flash powering structured brand analysis and narrative insights.
-Payments: Stripe billing via stripe-replit-sync for subscription lifecycle automation.
-Auth: Replit Auth with OpenID Connect handling secure, seamless login.

Key Technical Implementations

-Hybrid server architecture: Express API alongside the Next.js App Router.
-Robust caching with 7-day persistence for AI analysis to balance cost and speed.
-Secure session management with PostgreSQL-backed sessions and automatic token refresh.
-Managed Stripe webhook processor auto-configured via stripe-replit-sync.
-Drizzle ORM schema for users, brands, analyses, and favorites with type-safe relations.

Design & Experience

-Archival Modernism look blending Crimson Pro, JetBrains Mono, and tactile parchment tones.
-Soft brutalist components with hairline borders, inset shadows, and geometric dividers.
-Tabbed data model separating brand assets, AI signature study, and source data.
-Responsive, tactile motions inspired by editorial spreads and physical brand binders.

Security & Scalability

-Env-var driven secret management for Gemini, Stripe, and database keys.
-OIDC flow with secure HTTP-only cookies and rotation for session tokens.
-Role-based access control enforcing Pro entitlements on premium AI features.
-Production-ready Express server with trust-proxy, rate limiting, and audit logging.

Technical Highlights

-Demonstrates modern full-stack execution, AI integration, and premium editorial design in one cohesive SaaS proof.