[chiph]

I absolutely loved my Moto X with the walnut back. I switched to an iPhone when it stopped getting security patches.

It was built back when Google owned Motorola, before they sold off everything but the patent suite. And was intended to be their flagship phone - which the Pixel later became. Looking at the GrapheneOS FAQ, it doesn't look like I have a prayer of installing it on such an old device as it doesn't have the needed security hardware. Is there a lightweight Android install available?

[AstroNutt]

I've rooted and installed a few custom ROM's on phones back on the day, nothing recent though.

Here is a good place to get started with your Moto X. https://xdaforums.com/c/moto-x.2449/