locale2.php

<?php
# Ex 2
use App\Applications\Backend\Http\Controllers\ExampleController;

Route::get('/{locale}/hackaton', function (\Illuminate\Http\Request $request) {
    App::setLocale($request->locale);
    return app(ExampleController::class)->callAction('index', []);
});

localeRoute.php

<?php
// Ex #1
Route::group('/same-prefix/{locale}', function($locale){
  App::setLocale($locale);
  
  Route::get('/subscribers/{$subscriber}', ['uses' => 'SubscribersController@show']);
});

// non-translatable route...
Route::get('/contact', ['uses' => 'SiteController@contact']);