How can I enable the new alert feature in Grafana 8?

Monitoring and Observability Grafana
#1

How can I enable the new alert feature in Grafana 8?

We are looking escalate our Grafana 8 alerts to our on-call engineers in Zenduty

#2

https://grafana.com/docs/grafana/latest/alerting/unified-alerting/opt-in/

#3

Would be like this in the grafana.ini?
[feature_toggles]
ngalert = true
Didn’t work

#4 
enable= ngalert```