Just going to share my own observations here:

Using bower-asset/dropzone doe...

Just going to share my own observations here:

• Using bower-asset/dropzone doesn't work as mentioned before.
• Using npm-asset/dropzone works, at least for now.
• There is a packagist specific repo that is maintained by the same team. However, the directory structure is slightly different.

While npm-asset works, I am encouraged to use the official repo (enyo/dropzone). Yes, that won't be placed in the correct location for Drupal which means we need to write a custom entry in the repositories section. One way out would be to support both by checking two paths: the current one which is dist/min/dropzone.min.js and the one used in the new repo at dist/dropzone-min.js. You can see all the files here: https://github.com/dropzone/dropzone-packagist/tree/master/dist