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This site is built to do one job well: route the right Costa Rica buyers into the right quote path without making them decode the structure first.
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Puerto Jiménez, Costa Rica
info@gexpsoftware.com
© 2026 Marcelo Retana
Articles
The commercial articles come first. They are written for business owners and teams trying to fix visibility, trust, and follow-up. The technical notes stay public, but they sit behind the service story instead of competing with it.
Business and buyer articles
These are the posts that actually help the commercial side of the site. They cover websites, digital presence, WhatsApp response flow, and the reasons businesses lose trust or inquiries online.
The interesting question is no longer whether AI will show up inside business messaging. It already is. The real question is which teams will use AI to remove support bottlenecks without turning the customer experience into a bot maze.
Meta keeps adding more business features to WhatsApp, from centralized campaigns to AI support and calling. But for most LATAM small businesses, the real lesson is simpler: stop buying omni-channel complexity when WhatsApp is already the business.
Most small businesses face a false choice: one person drowning in WhatsApp messages, or an expensive call center operation. There's a third option that most haven't tried yet.
The WhatsApp Business API sounds technical because of its name, but what it unlocks is simple: your whole team handling WhatsApp from one number, without sharing a phone. Here's how it works in plain English.
I started GEXP Software because I saw local entrepreneurs getting ignored by agencies and ripped off by template factories. Here's the story, and what I learned about what small businesses actually need online.
Most agencies sell you a pretty design. We build websites that generate leads, rank on Google, and load fast — here's exactly how GEXP Software does it.
Your Instagram page isn't a business asset — it's rented land. Here's why local entrepreneurs in Costa Rica and Latin America are losing real money by skipping a proper website.
Most websites look fine but fail at the one job that matters — turning visitors into customers. Here's how modern full-stack development, performance-first architecture, and AI search optimization deliver real business results.
Technical notes
These posts are still part of the site, but they are secondary. They exist as evidence of how I think and build, not as the primary job of the website.
March 2026 made the pricing story impossible to ignore. Between Anthropic's off-peak usage promotion, renewed GitHub complaints, and the latest session-limit backlash, serious Claude Code users now have to design around limits instead of pretending they do not exist.
The Model Context Protocol started as an interesting standard. In 2026 it is becoming a market signal. When both Anthropic and OpenAI lean into MCP-based integrations, custom glue starts looking like technical debt on day one.
The era of betting your entire engineering workflow on one AI coding tool is ending. Usage caps, pricing pressure, and product specialization are pushing smart teams toward a layered stack instead.
Businesses across Latin America were losing customers in WhatsApp chaos. Existing tools were too expensive, too complex, or built for a completely different market. So I built the right one.
Anthropic just published research analyzing millions of real AI agent interactions. The data reveals how developers actually use agents, what risks are emerging, and why the 'set it and forget it' era is closer than you think.
Every time a new AI coding tool drops, devs jump ship. The problem isn't the tool — it's never going deep enough with any of them. Here's an honest comparison and why mastery beats tool-hopping.
AI models are reading your website right now — but they're guessing what matters. llms.txt is a new standard that lets you tell them directly. Here's what it is, who's using it, and how to implement it in Next.js.
Ghostty showing 207GB on a 32GB Mac. 129GB memory leaks on Linux. It's not just bad habits — there are real technical culprits hiding in your system. Here's what's actually going on.
After months of refining my AI-powered development workflow, I'm sharing the exact configuration that turned Claude Code into my most productive coding partner.
Speed isn't about cutting corners - it's about learning faster. Here's my approach to rapid MVP development.