Sacha Guyon

sacha.guyon@gmail.com· linkedin· github· x

Designer who became a developer, then a product manager — I work in the dev tools and AI agents space. From France, based in Brooklyn, NY.

Selected work

• Traversal2025 – 2026
  • Alert Intelligence 0→1
  • Production World Model 0→1
  • PepsiCo deployment Enterprise GTM
• GitLab2023 – 2025
  • GitLab Observability 0→1
  • GitLab Duo, enterprise layer Ongoing
• Datadog2019 – 2023
  • Watchdog Alerts Ongoing
  • Event Management 0→1
  • On-Call mobile app 0→1
  • Events Stream Ongoing
• Fueled2017 – 2019
  • Hagerty Insiders App 0→1
• Sparkup2015
  • Live Corporate Training App 0→1

About this site

This is the 2026 reboot of my personal site. It started when I found an old fork of mrdoob's htmleditor sitting in my GitHub — a page that shows its own source and lets you edit it live. That trick always fascinated me, so I rebuilt the site around it: the homepage is its own editor.

I learned a lot of what I know by reading other people's code. When I started using the web I spent as much time hitting "view source" as browsing — then came open source, Linux, Ruby on Rails.

Every single web page you visited contained the code showing you how it was created. The entire internet became a library of how-to guides on programming.

— Clive Thompson, Coders (via Jim Nielsen)

The animations come from an older fascination — generative coding. Demoscene intros, Processing sketches, John Maeda, Flash-era websites: I'd spend hours playing with code just for the pleasure of making something beautiful move. Then Bret Victor's explorable explanations showed the web as a new medium — one that could teach and tell stories interactively (>). That got me into data visualization, then observability, then developer tools.

The animations here were built with AI. The next experiment is a prompt inside the editor, so you can change a sketch by describing the change instead of editing the code. We'll see where it goes.