Anything to keep in mind when installing other software etc?
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**Describe Your Problem:**
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I'd like to install some third party software that isn't part of the hb-config preconfigured apps, is there anything I need to keep in mind, or can I treat this like a regular Raspberry Pi OS distro? Specifically, I'm trying to install DuckDNS which works via a crontab - will following the instructions for the pi [here](https://www.duckdns.org/install.jsp) be an issue? 

**Environment:**

* **Homebridge Raspberry Pi Image Version**:
* **Node.js Version**: v14.15.4
* **NPM Version**: v7.5.3
* **Homebridge Version**: v1.1.7
* **Homebridge Config UI X Plugin Version**: v4.38.0

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