gistfile1.txt

# 1. composer.json

{
    "name": "ross/myproject",
    "description": "My Project",
    "license": "proprietary",
    
    "require": {
        "bolt/bolt": "~2.1",
        .... other requirements
    },

    
    "minimum-stability": "dev",
    
    "prefer-stable": true,

    "scripts": {
        "post-update-cmd": [
            "Bolt\\Composer\\ScriptHandler::installAssets",
            "gulp"
        ]
    },
    
    "autoload": {
        "psr-4": {
            "Myproject\\": "src",
            "Myproject\\Tests\\": "tests"
        }
    },

    
    "extra": {
        "bolt-web-dir": "./public",
        "bolt-app-dir": "./app"
    }
    
    
}

# 2. The Bootstrap (based on public/index.php)
<?php

$config = new Composer(__DIR__."/../");
$config->setPath('web', 'public');
$config->setPath('files', 'public/files');
$config->setPath("themebase","public/theme");
$config->getVerifier()->disableApacheChecks();
$config->verify();
$app = new Application(array('resources'=>$config));
$app->initialize();
$app->register(new Myproject\Provider\ServiceProvider($app));
if($app['config']->getWhichEnd()=='backend') {
    $app['twig.loader.filesystem']->prependPath(__DIR__."/../src/templates/backend");
} else {
    $app['twig.loader.filesystem']->prependPath(__DIR__."/../src/templates/frontend");
}
$app->run();


# 3. Routing to your custom controllers in routing.yml...
  path:               /
  defaults:           { _controller: 'controller.frontend:homepage' }

search:
  path:               /search
  defaults:           { _controller: 'controller.frontend:search' }

preview:
  path:               /preview/{contenttypeslug}
  defaults:           { _controller: 'controller.frontend:preview' }
  requirements:
    contenttypeslug:  'Bolt\Controllers\Routing::getAnyContentTypeRequirement'

contentlink:
  path:               /{contenttypeslug}/{slug}
  defaults:           { _controller: 'controller.frontend:record' }
  requirements:
    contenttypeslug:  'Bolt\Controllers\Routing::getAnyContentTypeRequirement'
...etc

Thanks!)