The stack

Technologies I work with

Tools follow the problem, not the other way around — these are the tools I’m fastest with. Every item below appears in the six case studies — in the shipped demo or as the documented production path.

Plugs into what you already run

The center is the part I build

Swipe sideways for the full diagram →

Your website

CRM

Booking calendar

Spreadsheets

Phone lines

OpenAIClaudeLLaMAASR · TTS

Models & speech

Grounded data

PostgreSQLpgvectorRAGOCR

Automation

n8n

Email / SMS

Sheets & CRM sync

Website · CRM · calendars · sheets · phones stay yours — the AI layer wires in around them.

AI models & inference

The reasoning layer

OpenAI (GPT family)Generation · Tool use
Anthropic ClaudeAgents · Long context
LLaMA — self-hostedPrivate deployments
Embedding models (e5, bge)Semantic representations
Speech pipelines (ASR / TTS)Voice agents

Retrieval & data

Grounded answers, verifiable sources

PostgreSQLStructured data · SQL answers
Vector stores (pgvector)Similarity search
RAG pipelinesChunking · Citations
OCR extractionScans → searchable text
Semantic searchMeaning over keywords

Automation & integrations

The busywork layer

n8nSelf-hosted orchestration
Make · ZapierManaged workflows
Webhooks & REST APIsSystem-to-system glue
Google Workspace APIsSheets · Calendar · Gmail
SMS gatewaysFollow-ups · Confirmations
Canva APIAsset generation in-flow

Engineering

How the products get built

Python · FastAPIBackends · AI services
Node.js · TypeScriptAPIs · Tooling
ReactDashboards · Product UI
WebRTC · WebSocketsReal-time voice & data
Tailwind CSSDesign systems in code

Infrastructure & delivery

Shipping and running it

DockerReproducible deployments
Cloudflare WorkersEdge hosting · This site
Self-hosted LLM infraData stays yours
GitHubVersioning · CI · Handover