Site members may be aware of the new (as at 2018) Gemini PDA, a keyboarded clamshell device which runs Android by default, but which can also run Linux (a Debian install image is available), Sailfish OS (porting under development), and possibly also others.
Would questions about installing Linux on this device be more appropriate here on Unix.SE or perhaps on SuperUser instead (as questions are perhaps more likely to relate more to help with support for and installing on this specific hardware, rather than how to do everyday tasks as on any other Linux system (once installed)?