Advanced Custom Fields with composer

plugins
2

You want to install ACF free or PRO?

For using wpackagist repository you just have to declare it once,
then you can require with the wpackagist-plugin/ prefix.

For ACF free (wpackagist):

{
  [...]
  "repositories": [
    {
      "type": "composer",
      "url": "https://wpackagist.org"
    }
  ],
  "require": {
    [...]
    "wpackagist-plugin/advanced-custom-fields": "4.4.11"
  }
}