manifestUrl
The URL of the Zipline manifest file to load this app's code from.
This flow should emit each time that a code load should be attempted. No code will be loaded until this flow's first emit.
The flow may make subsequent emits to trigger a hot reload attempt. Hot reloads will be attempted even if the URL is unchanged. This is typically most useful during development. Consider using app.cash.zipline.loader.withDevelopmentServerPush to turn the Zipline development server URL flow into one that emits each time that server's code is updated.