Insights & Engineering

AI, Python & SaaS Engineering Blog

Deep dives into AI automation, Python architecture, and the engineering behind production-grade systems

WhatsApp Business API in 2026: Complete Setup Guide for European Companies

Complete guide to WhatsApp Business API setup for European companies. BSP selection, GDPR compliance, pricing, templates, and automation strategies.

How Much Does a Custom AI Chatbot Cost in 2026? Complete Price Breakdown

Detailed AI chatbot development costs in 2026: pricing by type (FAQ bot, sales assistant, support automation), tech stack, and complexity. With real project examples and ROI calculations.

How I Built an AI Chatbot That Handles 70% of Customer Support for a Barcelona E-commerce

Case study: AI chatbot built with Django and OpenAI that automated 70% of customer support and increased e-commerce conversion by 35%. Architecture, stack, and results.

Building an AI Sales Chatbot with Django and OpenAI: Lessons Learned

Practical guide to building an AI-powered sales chatbot for e-commerce using Django and OpenAI API. Covers architecture, prompt engineering, and conversation management.

How I Built a Multi-Tenant SaaS Time Tracker with Flask and PostgreSQL

A deep dive into building a schema-per-tenant SaaS application for tracking employee hours across multiple cafe locations in Barcelona using Flask and PostgreSQL.