NeonCRM Database Manager integration with Zapier on Squarespace

Has anybody used Zapier to integrate a Database Manager on a Squarespace 7.1 website?

I am creating a website for a nonprofit that uses NeonCRM as their database manager software and they need to continue to use this on all their registration forms, newsletter sing-up, etc. I'm guessing Zapier should work fine with NeonCRM, but don't want to start working on this big project without knowing if this integration can be done.

Anybody has any experience doing something like this? Tips, tutorials, etc.