System architecture

The technology and the decisions behind the published work: where records live, which steps are deterministic, where interpretation is allowed and how failures surface. Compiled from the case studies rather than drawn as an aspiration.

Read the source case studies · Discuss an architecture problem

Systems and the stack behind them

243,000 SKUs, Zero LLMs at Runtime

Stack: Node 20 · Express · PostgreSQL 16 · Redis (ioredis) · Zod

AG Bridge — AI Gateway

Stack: Python 3.12 · FastAPI · Uvicorn / Gunicorn · Gemini 2.5 Flash · Redis

AG Cloud Website

Stack: React 18 · Vite 5 · TypeScript · Tailwind 3 · i18next

AG Main Website

Stack: React 18 · Vite 5 · TypeScript · Tailwind 3 · shadcn/ui

AI Audit Platform in Production

Stack: n8n (6-workflow state machine) · Gemini Vision · Express (custom form) · React/Vite dashboard · Keycloak

AI Branch Audit System

Stack: n8n (Cloud) · Gemini 2.5 Flash · Google Sheets · Google Drive · Google Docs

CEO Productivity Tracker

Stack: n8n · Telegram Bot API · Google Gemini API · Google Sheets API · n8n Schedule Trigger

CTO Intelligence Hub

Stack: Vanilla JS · Keycloak 26 · PKCE S256 · PostgreSQL 16 · FastAPI

Enterprise Inventory for a LATAM Tire Retailer

Stack: React 18 · Vite 5 · TanStack Query v5 · keycloak-js 26 · Express 4

GrowthOS Voice Relay — AI Phone Intake

Stack: Node.js · ws (WebSocket) · Twilio ConversationRelay · Google Gemini 2.5 Flash · Google TTS (Journey)

Hardened Audit Submission Form

Stack: Node.js 20 Alpine · Express 4 · multer (streaming) · AWS SDK v3 · MinIO

One Canonical Intake, Three Channels — GrowthOS

Stack: Static HTML/CSS/JS (framework-free) · nginx · n8n · NocoDB · Keycloak

Operator Console & Consciousness Engine

How Del Rey Valmoria designed and engineered a conscious, living 3D portfolio powered by React, Three.js, Google Gemini, and Neon PostgreSQL.

Polling on the ETA, Not the Clock — Meridian

Stack: Node 20 · Express + Helmet · PostgreSQL 16 (Force RLS) · Redis 7 · React 18 + Vite

Self-Hosted Fitment Intake Tool

Stack: HTML/CSS/JS (static) · Formbricks (self-hosted) · nginx:alpine · Docker · Coolify

SMM Drip Dashboard

Stack: n8n v2.10.4 · NocoDB · Apify Instagram Scraper · SMMFlare API · Chart.js v4.4.0

The Numbers Were Wrong — AP Data-Integrity Rescue

Stack: React 18 + Vite · Keycloak OIDC · Node + Express · NocoDB · n8n

Whisper Transcription Pipeline

Stack: n8n · OpenAI Whisper API · Anthropic Claude Haiku · NocoDB · Webhook Trigger