Composer

Install on Ubuntu

sudo apt install composer

or

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"

php composer-setup.php --install-dir=/usr/bin --filename=composer

Composer local repository

composer.json

{
  "repositories": [
    {
      "type": "path",
      "url": "/path/to/package/name",
      "options": {
        "symlink": false
      }
    }
  ]
}

composer require package/name