Local development

In development you want the webview to load from your running dev server, not from a packed .wvb. Register a local protocol so the custom scheme proxies to Tauri's Vite dev server and keeps hot reload.

Proxy the dev server

Register Protocol::local next to Protocol::bundle, mapping a scheme host to Tauri's Vite dev server (default http://localhost:1420):

use wvb_tauri::{Config, Protocol, Source};

Config::new()
  .source(Source::new().builtin_dir_fn(|app| Ok(app.path().resource_dir()?.join("bundles"))))
  // Production: serve files from the packed bundle.
  .protocol(Protocol::bundle("bundle"))
  // Development: proxy the same host to the running dev server.
  .protocol(Protocol::local("local").host("example.com", "http://localhost:1420"));

Protocol::local(scheme) forwards local://example.com/... to the dev server, so edits reload live. Map several hosts with more .host(...) calls or a single .hosts(...).

Switch dev and prod

Point the window at the local scheme while developing and at the bundle scheme when you ship:

{
  "app": {
    "windows": [
      {
        "url": "local://example.com"
      }
    ]
  }
}

Swap the window url to bundle://app.wvb for production builds, or pick it at runtime with cfg!(debug_assertions) so the switch is automatic.