ness dev

Starts the Vite development server with HMR and hot route-data revalidation.

ness dev [options]

Option	Description
--host <host>	Bind to a hostname or network interface
--port <port>	Preferred development port
--open [path]	Open the browser, optionally at a specific route
--mode <mode>	Select a Vite environment mode
--force	Rebuild optimized dependencies
--strict-port	Fail instead of selecting another port

ness dev --host 0.0.0.0 --port 3000 --open
ness dev --mode staging --strict-port

Environment files are loaded using the selected mode. Route types and the route manifest are refreshed as application files change.

An unhandled server error is rendered by the Ness error overlay instead of a bare Internal Server Error: source-mapped stack frames, a code frame around the failing line, and editor links. The overlay is development-only — it is never applied to a build — and ness({ overlay: false }) in ness.config.mjs turns it off.