Serving site.webmanifest on Laravel Vapor

For whatever reason Laravel Vapor explictly does not publish your site.webmanifest file, and it won't be ~~fixed~~ changed until the next major version. To get around this in the meantime you can add a route that simply serves the file from the public path (and optionally use the cache middleware).

Route::middleware('cache.headers:public;max_age=2628000;etag')
    ->get('/site.webmanifest', fn () => file_get_contents(public_path('site.webmanifest')));