This project aims to provide a dynamic DNS capability for Synology NAS users that use Gandi.net domain name registrar. It based on LiveDNS RESTful API.

1. Add python3 package to the Synology box
2. Copy script to /usr/local/bin/livedns.py and make it executable

$ sudo curl -o /usr/local/bin/livedns.py https://raw.githubusercontent.com/kofemann/livedns4synology/master/livedns.py
$ sudo chmod  x /usr/local/bin/livedns.py

1. update /etc/ddns_provider.conf and add a new provider:

[USER_Gandi LiveDNS]
        modulepath=/usr/local/bin/livedns.py
        queryurl=Gandi

NOTE: the provide name must start with USER_ prefix (since DSM 7.0)

Now on the new provider should be available under Control Panel -> External Access -> DDNS

You need to provide the following configuration parameters:

1. FQDN of the host
2. Username, which is ignored
3. Gandy API key

This work is published under public domain license.