Customize

After the Quickstart works, customization is where the instance becomes yours. Use this section when you are ready to refine links, branding, public pages, policy, access control, analytics, and operational settings.

For a practical map of what to customize first, read Where to start customizing vanityURLs.

The important rule is simple: edit custom/, not generated files in build/. Product defaults live in defaults/; your instance-owned choices live in custom/; the build combines both into the Worker assets and runtime JSON that Cloudflare deploys.

flowchart LR
A["defaults/
Product baseline"] --> C["npm run build"]
B["custom/
Instance choices"] --> C
C --> D["build/
Generated output"]
D --> E["Worker assets
and runtime JSON"]
E --> F["Cloudflare
deployment"]