I design, build and ship AI agents, voice agents, WhatsApp agents, automations, mobile apps, web apps, desktop apps and websites.
Hi, I'm Fernando, an independent developer in Yucatán, Mexico. I've launched 10+ products, including LunaNotes (50k+ users) and TuMenuDigital.mx (500+ SMBs). Now I help startups and businesses launch theirs.
Previously built software at
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My own products
Apps I came up with, built and run myself. The same work I now do for clients.
TuMenuDigital.mx
Point of sale and digital menus for restaurants across Mexico.
- SaaS
- 500+ SMBs
LunaNotes
AI study notes, diagrams and flashcards from any video, lecture or PDF.
- Web app + Chrome extension
- 50k+ users
bip
Tamper-proof QR time clock so Mexican SMBs can prove when every employee clocked in and out.
- SaaS + mobile app
- Coming soon
Rumi
The app for running the house together: shared chores, turns and shopping lists.
- Mobile app
PocketLabs
Calm, minimal one-handed mobile games, starting with Boink.
- Mobile games
- Boink beta
What I can build for you
Illustrative example
How we'll work
One person from the first call to launch day, so nothing gets lost in a handoff.
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Step 1: Discover
A short call to understand the goal, the users and the constraints.
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Step 2: Plan
A written scope with milestones, so we agree on what ships and when.
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Step 3: Build
Frequent demos on a live URL. You see progress, not status reports.
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Step 4: Launch
Deploy, measure and hand over. I stay around for what comes next.
Writing
- You Don't Need a Native Chrome Extension (Until You Do) I spent months fighting Chrome extension APIs to validate an idea. Then I rebuilt it as an iframe in days and reached 12,000 users. Here's when to use each approach.
- Running Claude Code in a Loop I share how my workflow evolved, from Cursor to Claude Code, and my experiments with long-running coding agents like Ralph Wiggum and Relentless.
- The Real Problem With Vibe Coding The real issue with vibe coding isn't the practice itself, but the term. It means radically different things to different people, and that confusion is what breaks the conversation.
Have a project in mind?
Tell me what you're building. I'll reply with questions, a rough plan and next steps.