Portable Roon device?

I’ve been thinking lately about using Roon on the go.
Remote play isn’t an option, VPN and Remote Desktop aren’t reliable enough.

I’ve been thinking about handheld devices like the Astell & Kern ones, or Pioneer XDR. Is there such a device that could work as a Roon Core?

I suppose one option would be a Linux phone like the Pinephone.

Any suggestions would be appreciated!