The stack behind PubLink.
The internal stack that lets us operate with a lean team and ship faster. We don't sell automations — we sell marketing results. But those results get faster because we built our own infrastructure.
// operational back-end · not a product for sale
Architecture
Components
n8n
Self-hosted on an Ubuntu VPS (Hostinger). Orchestrates every flow. Self-hosted to sidestep cloud limits and cut costs to a fraction of Make/Zapier.
Claude API
The brain. Email personalization, content generation, lead scoring, data cleanup, natural-language task extraction.
Google Sheets
A deliberate choice: simplicity, native n8n integration, zero infrastructure cost, accessible to clients with no onboarding.
Higgsfield AI
Visual and video asset generation for campaigns. Diffusion models optimized for fast output at scale.
Gmail SMTP
Sending layer for outreach with automated warm-up, bounce handling and deliverability monitoring.
Telegram + Sheets
Auxiliary stack for internal task management. WhatsApp Business API, Google Calendar and Google Drive round out the infrastructure.
Building in public.
We share what we automate: new n8n flows, prompts that work, mistakes that cost us. Coming soon.