These are the blueprints I collected for my smart home:

react-when-appliance-finishes.yaml

Run some actions, when an appliance finishes.

synchronize_lights.yaml

Switch on and off some lights together with other lights.

wake_and_sleep_light.yaml

Slowly dim up lights in the morning and keep them dimmed in the night.

tuya_4_gang_remote.yaml

Use multi-button Tuya Zigbee remote controls.

venting_for_climate_control.yaml

Use a ventilation device to control temperature and humidity.

window-open-notify-homematic-ip.yaml

Reduce target temperature of HomeMatic climate devices, when windows are opened.