# Docker & Add-on

By downloading different Add-ons in Docker, you can enable CUBE OS to gain more capabilities and become more comprehensive and reliable.

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The following are 2 examples to show how to use the Add-on features on CUBE OS.

## eWeLink Smart Home

Sync eWeLink-supported devices to CUBE and control them. Tutorial refers to: [eWeLink Wi-Fi Devices (LAN Capable)](https://cube.ewelink.cc/getting-started/add-devices/ewelink-wi-fi-devices).

## Node-RED

Low-code programming for event-driven applications.

{% stepper %}
{% step %}
Install and run the Node-Red Add-on.

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{% endstep %}

{% step %}
Click 'RUN' to open the settings, select network as 'host', and fill in other parameters according to your needs, then tap 'RUN'.

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{% endstep %}

{% step %}
Wait a while and open a new browser tab to visit the Node-Red page, the default URL is ihost.local:1880 or IP of iHost:1880 (for example, 192.168.1.232:1880, you may find the IP on your router’s management page.)

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{% endstep %}
{% endstepper %}