Nextcloud Talk Bot

Nextcloud Talk Bot connects Home Assistant with Nextcloud Talk rooms for sending and receiving chat messages. It adds a notifier that posts messages from Home Assistant to a room, which suits updates or alerts, and a default room can be set so a target is optional. Communication can run one way or both ways. For incoming messages, a webhook checks that a message comes from an authorized bot and then fires an event that automations can react to, such as opening a garage door when a certain message arrives. A blueprint is included that passes a room message to a conversation agent and sends the reply back to the room through the notifier. The integration depends on a Nextcloud instance reached over HTTPS, and the bot is created on the Nextcloud side with a webhook address and a shared secret.