In an existing Drupal site, execute drush make-generate drupal.make
Create a new Aquifer project.
Copy in that makefile.
At this point, you’ll need to bring in your custom code into the Aquifer directory structure
From there, aquifer build should generate a build directory that looks just like your existing docroot. After testing it thoroughly, you can use Aquifer Git to deploy your project to the existing repo for deployment.

In an existing Drupal site, execute drush make-generate drupal.make
Create a new Aquifer project.
Copy in that makefile.
At this point, you’ll need to bring in your custom code into the Aquifer directory structure
From there, aquifer build should generate a build directory that looks just like your existing docroot. After testing it thoroughly, you can use Aquifer Git to deploy your project to the existing repo for deployment.

I've been writing a lot about what I believe is important for the future of Drupal, but now it is your turn. After every major release of Drupal I do a "product management survey" to get your ideas and data on what to focus on for future releases of Drupal (8.x/9).

Drupal 8.0 core packed many great improvements, but we didn't focus much on advancing Drupal's content workflow capabilities. As we think about Drupal 8.x and beyond, it might be good to move some of our focus to features like content staging, better audit-ability, off-line support, full-site preview, and more. If you are a content manager, I'd love to hear what you think about better supporting some or all of these use cases. And if you are a developer, I encourage you to take a look at these modules, try them out and let us know what you think.

Drupal 8.0 core packed many great improvements, but we didn't focus much on advancing Drupal's content workflow capabilities. As we think about Drupal 8.x and beyond, it might be good to move some of our focus to features like content staging, better audit-ability, off-line support, full-site preview, and more. If you are a content manager, I'd love to hear what you think about better supporting some or all of these use cases. And if you are a developer, I encourage you to take a look at these modules, try them out and let us know what you think.