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NEXALABSAI & Software Labs
Learn by Doing

Technical Step-by-Step Implementation Tutorials

Practical step-by-step guides with runnable source code to deploy real automation workflows in your company.

Intermediate25 min implementation
GitHub Repository

WhatsApp Sales Automation with ManyChat and OpenAI GPT-4o

Build a WhatsApp sales agent that qualifies prospects, handles product FAQs, and books meetings automatically on Google Calendar.

Required stack:

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1Setup Number on Meta Cloud API

Create an account in ManyChat and connect your phone number through the Meta guided setup.

2Craft the AI Agent System Prompt

Set strict system instructions so the agent answers with exact facts and steers prospects toward checkout.

system_prompt_whatsapp.txt
Eres "NexaLabsBot", el asesor virtual de NexaLabs.
Objetivo: responder dudas sobre desarrollo de software y servicios de IA.
Tono: profesional, conciso, amable.
Regla clave: Si el cliente solicita presupuesto superior a 2.000€, solicita su email y agenda una llamada.
Advanced35 min implementation
GitHub Repository

Private Llama 3 Deployment on an AlphaVPS Node with Docker

Complete guide to provisioning an Ubuntu instance, installing Docker, running Ollama, and exposing an authenticated private LLM API.

Required stack:

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1Provision Server and Update System Packages

Connect via SSH and update Ubuntu 24.04 LTS dependencies.

Terminal SSH
sudo apt update && sudo apt upgrade -y
sudo apt install -y curl ufw git docker.io docker-compose-v2
sudo systemctl enable --now docker
Beginner20 min implementation

Automated Invoice PDF Data Extraction with Make and OpenAI Vision

Automatically parse incoming invoice PDFs from email, extract tax IDs and itemized totals, and sync directly into Google Sheets or ERP.

Required stack:

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1Create Email Trigger Webhook

Configure a webhook trigger that receives invoice attachments from your accounting inbox.