Hi! 👋

I'm Horacio Herrera, a product-minded frontend engineer and designer from Panama 🇵🇦, based in Barcelona. More about my journey →

I build rich-text editors, local-first apps, and collaborative publishing tools. I'm currently building Seed Hypermedia, a desktop and web platform for decentralized knowledge collaboration — combining fine-grained linking, embedding, cryptographic authorship, and community-controlled publishing.

My work sits at the intersection of product design, frontend architecture, and open-source software. I've contributed to editor ecosystems like Plate and BlockNote, and I care deeply about tools that help people write, publish, discuss, and organize knowledge.

You can find me in X, Bluesky, Youtube or email

Latest Short Posts

Jean Web Access behind Tailscale

State machines to visualize the work of agents

Notes about how the document machine should work

Pure CSS Scroll Shadows

What I want for the commenting experience to be

Remodeling the web

Vibe code like a PRO

How to Background Agents

Great product features in the wild: Canva Pause Subscription

This is Why Real Leaders Don't Give Orders — Seth Godin

Why Are Beach Holes So Deadly?

Modeling resizable panels using State Machines

SR-71 BlackBird

The Riddle That Seems Impossible Even If You Know The Answer by Veritasium

Just press record 🔴

State machines are great, but hard to establish

Do you consider Luck in your Life?

10 (Profitable) Newsletter Business Ideas To Start In 2025 by Greg Isenberg

Last Writings

Codesign your Electron Application for Windows

Velopack: Delta Updates for Electron Apps (and Why You Might Not Need Them Yet)

Deploy a Seed Site From Your Own Fork

Graduated Trust: A Web-of-Trust Proposal for Open Source in the AI Era

Pairing serif & sans-serif for headings vs body — does it actually help reading?

Cómo cuidar tu kimono blanco de JiuJitsu (gi) y mantenerlo como nuevo

How I organize my week on sundays

Unlimited self-generated morale


Short Posts	8 Oct	5
Learning from seeing Devin prompting itself	26 Sep	0
Do you consider Luck in your Life?	10 Sep	0
about	9 Sep	1
Projects	9 Sep	6
Codesign your Electron Application for Windows	8 Sep	0
Writing	31 Aug	2
How I Built a Full Booking System as a Side Project — With Devin as My Engineering Partner	11 Aug	1
Me uno al programa de Devin Ambassadors	11 Aug	5
Seed Hypermedia	7 Aug	5