Idea - contact synchronization
It would be nice to be able to synchronize contacts automatically with services such as Gmail, Apple contacts, etc.
This would require to deploy an additional service, which maps contact data via CardDAV protocol. Very complicated to implement this, that's why there are almost no tools for this. I only know of sync.blue.
Alternativly, one could try to create a plugin that bridges FluentCRM contact data endpoints (API) with iCloud address book via PHP-CardDAV-Client-Library like mstilkerich/carddavclient (github).