It backups the current Zabbix configuration like below. Primary goal was to diff various versions of templates in Git. But you could use it also as a general backup tool.
Features
Backups via Zabbix API configuration.export of
Hosts
Host groups
Templates
Template groups
Maps
Mediatypes
Images
Export to
Remote git repository
S3 compatible API
Encryption
optional with deterministic encryption results. WARNING: less secure!
With non-deterministic encryption the output files will change each time. This will create a lot of changes in backup storage (e.g. Git)
You have to decide what you want to protect against with encryption and whether the benefit of taking up less space overweighs the greater need for protection.