Most small business automation stacks start simple.
A form submission goes into a CRM.
A lead gets scored.
An email or WhatsApp message gets sent.
Maybe an invoice gets extracted with AI.
Then one day, the stack looks like this:
| Tool | Monthly Cost | Purpose |
|---|---|---|
| Zapier Professional | $49 | Workflow automation |
| Make Core | $29 | Secondary automation |
| OpenAI API | $60+ | AI processing |
| HubSpot Starter | $50 | CRM |
| Typeform | $25 | Form intake |
| Airtable Plus | $20 | Data storage |
| Webhook testing / API tools | $20+ | Debugging and routing |
| Extra automation tools | $30+ | Glue logic |
| Total | $280–$300+/month | Fragmented automation stack |
The bigger problem is not only the cost.
The bigger problem is fragmentation.
Zapier triggers Make.
Make calls an AI API.
The AI response gets written to Airtable.
A separate sync pushes data into the CRM.
Errors happen silently.
Duplicate records appear.
Nobody knows where the source of truth lives.
I built omni-odoo-stack to explore a cleaner alternative:
A self-hosted, open-source-friendly automation architecture using:
- n8n
- FastAPI
- Docker
- PostgreSQL
- Odoo 19 Community
- Groq / Llama 3
- WhatsApp Cloud API
- Nginx
The goal was to show how a business automation stack can be designed with fewer moving parts, better validation, and lower infrastructure cost.
Repository:
The repo includes:
- Docker Compose setup
- Odoo configuration
- Custom Odoo modules
- FastAPI middleware
- Pydantic v2 validators
- Importable n8n workflow JSON files
- Documentation
- Setup notes
- Architecture notes
Final Thought
The point of this project is not just to replace paid tools.
The point is to show that business automation needs real backend architecture.
A good automation stack needs:
- validation
- observability
- retry handling
- duplicate prevention
- API boundaries
- secure configuration
- persistent storage
- clean deployment
That is what turns a demo workflow into something a business can actually rely on.
About Me
I am a backend engineer specializing in:
- Odoo ERP customization
- n8n workflow automation
- Python backend systems
- FastAPI middleware
- PostgreSQL optimization
- WhatsApp Cloud API integration
- AI middleware with structured output validation
I have 8+ years of production experience across Odoo, Python, backend automation, and ERP integrations.
I am open to remote contract work involving Odoo modules, n8n automation, AI middleware, PostgreSQL optimization, and backend integrations.
GitHub:
Project repo:
github.com/gharisj3/omni-odoo-stack
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