Integrate PushAlert WPN

Has anyone successfully integrated PushAlert’s (Web Push Notification) service?
I’ve come up on a few challenges with the various integration methods.
The integration requires one or both of the following :
(1.) Uploading two files (a, .json and a .js) to your site’s root directory.
(2.) Installing a script inside your site’s head tag.
Wix does not allow uploading to root.
Wix will allow installation of the head script - but only if that script does not try to access the DOM - which the PushAlert script attempts.
Any suggestion, advice, or help will be greatly appreciated.
Thanks.

You can enable push notifications on your Wix Site. Just follow Push Notification in Wix