mobile+web+pwa author+speaker+trainer.
Author of many books and courses, latest: Learn PWA! (free!), Hacking Web Performance (O'Reilly)
| Author | 13 books and counting... |
| Instructor | 18 online active courses and +300 live workshops |
| Developer | Mobile Apps and Websites |
| Speaker | +300 talks in +50 countries |
🔥 45% OFF
What if you didn’t need that framework?
My new book “Vanilla Web” is Manning’s Deal of the Day until midnight (US ET).
Modern standards. Fewer dependencies. More control.
And a smaller, cleaner surface that works better with AI agents.
Early access edition 👇
https://www.manning.com/dotd?utm_campaign=9793804-Deal%20of%20the%20Day&utm_source=Author%20DOTD%20emails
🔴 NEW BOOK 🔴
I’m writing a new book and the early access version (MEAP) is already available.
👉 50% off for a limited time
Includes continuous updates and the final version (print or ebook).
This is my 15th book 🙂
Meta's big reveal today: smart glasses with a display and a wristband for gesture control.
Cool. I'm now wearing my Google Glass (2013) + Myo armband (2014).
Same thing! minus the AI 😂
🟡 NEW COURSE OUT!
Build a high-performance full-stack app from scratch — no frameworks.
Vanilla JavaScript frontend + rock-solid Go backend with a JSON API.
Now on @frontendmasters.com
Get 25% OFF First month at https://firt.dev/vanillajs-go/
My talk titled “Unlocking Generative AI in your Web App” was delivered last week at Devoxx UK is now available for viewing.
Check it out! https://firt.dev/genai-web-apps/
Devoxx UK London is starting now 🇬🇧
It's great to see hundreds of developers in one physical room in 2025. 😅
"The Town that Went Crazy For Crypto"
Last Sunday, the printed US edition of The New York Times featured my investigation from a few months ago into a huge crypto scam involving Polish actors hired as fake executives in a small town in Argentina. It's an incredible story!
Link in reply.
Today is the 20th anniversary of the first mobile game I published 🙀🎂
Hoy se cumplen ¡20 años! del juego de Truco para celulares que hice 🙀🎂
**Truco** (an Argentinian card game)
🧉First local game for mobile devices
🕹️First multiplayer game in Latin America
🥉3rd price in the first Mobile App national contest
J2ME, 64Kb maximum, compatible for mobile phones with screens: 128x96, 128x128 and 176x220 😬
