Core configuration/DSL, distributed clusters, TLS, REST API, backends, event forwarding & checks and notifications.

Monitoring web framework and CLI tool questions, AD integration, additional visualization & dashboards

Custom Icinga Web 2 module development, your Icinga addons and even more awesome integrations.

Monitoring of databases, network, SNMP, hardware, Linux/Windows, etc. - agent less or agent based, anything you can imagine. Check https://exchange.icinga.com for suitable plugins first.

Icinga website, infrastructure, this platform and everything else which doesn’t fit in the other categories.