Ideas, tutorials and processes
I publish analysis, tutorials and experiments about AI automation, iOS development, FinTech and technical SEO. All content is original.
The goal of the blog is to leave a trace of how I think and build: real problems, technical decisions, constraints, results and lessons for developers, clients or teams that want to apply technology with judgment.
AI automation
Real cases with n8n, LLMs, APIs and workflows that reduce manual work without losing control. I focus on architecture, maintenance and measurable results.
iOS development
Notes on SwiftUI, privacy, App Store and technical decisions from building my own apps. I include product, performance and publishing lessons.
FinTech and data
Backtesting, risk metrics and quantitative analysis explained through auditable projects. The goal is to separate intuition, data and bias.
SEO and GEO
Structure, rich data and content prepared for classic search engines and generative engines. I work on canonicals, sitemap, schema and semantic clarity.
Restaurant booking system with AI, WhatsApp and n8n
How I built a restaurant booking system with WhatsApp, n8n, AI, Google Calendar, capacity checks, email confirmations and cancellations.
Croissant Adventure: how I built a full web game in vanilla JavaScript
How I built Croissant Adventure, a vanilla JavaScript web game with a central world, minigames, characters, AI chat, Firebase and a custom engine.
FadeChain: how we built a private blockchain voting system with zero-knowledge
FadeChain explained: private voting on Ethereum Sepolia with zk-SNARKs, Merkle trees, a relayer and time-weighted votes.
How I found an internship in one week by automating LinkedIn and ranking offers with data
How I used Selenium, analysis of 10,000 LinkedIn job offers and reverse engineering of ATS filters to get 10 interviews from only 15 emails.
The Python algorithm I built to get SEPE appointments
How I built a Python bot to automate SEPE appointment checks, why it had impact and what I learned about ethical automation, PyAutoGUI and public services.
The AI systems I have built for NexaVision AI
A technical and product overview of the AI systems I have built for NexaVision AI: agents, leads, content, calls, HR and business automation with n8n.
NexaVision AI: what I am building and why it is one of my most important projects
How I am building NexaVision AI with Roger Pumarola: AI agents, n8n, business automation and product lessons.
Welcome to the blog: why I am launching it and what you will read here
Introduction to Gorka Hernandez's personal blog: AI automation, iOS development, FinTech and technical SEO with practical judgment.