Engineering

Designing an Animation Format for AI: How .fmtion Enables LLM-Generated Animations

Building a Layered State Machine for Animation

Rendering Animations with Rust and WebAssembly in the Browser

How We Route Nested Content: Hierarchical Permalinks in the CMS

Why Every Faster Workspace Is a Git Repo

How Themes Render: One Template Language, Thousands of Sites

The Media Pipeline: What Happens After You Upload

Guardrails for AI-Edited Websites: Validators, Checkpoints, and Review

Validators Everywhere: How We Let AI Edit Production Safely

When Success Messages Lie: Verifying Distributed Writes

What It Takes to Deliver Email at Scale

Building a Booking Availability Engine

How the Journey Engine Decides When to Send

Anatomy of a Form Submission: From Click to Customer Record