Build-less ESM Frontend

Create frontends that run directly in the browser using ES modules—no bundler, no build step.

Starter Template

Copy from assets/starter/ for a working baseline:

• index.html — import map + module entry
• app.js — Preact + signals + hash routing
• index.css — CSS variables, dark mode

Run locally:

npx serve assets/starter   # or python3 -m http.server 3000

Core Patterns

1. Import Maps