Thanks for trying hedlykarok
The Roku Smart Home app needs Google Play Services to work properly, and depends on that system for updates, authentication, and device communication.
While there are workarounds out there, we don’t recommend installing third-party apps outside of Roku’s official channels for safety and reliability.
If you have another device that supports Google Play, that’s your best bet. Once your cameras are activated, you can check the live feed directly through your Roku TV or Roku streaming device by installing the Roku Cameras Channel.
Hope this helps.
Roku Community Team