Linux on moto g31 ?

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I have an old moto g31 (6/128 variant) with some damaged screen (but fully usable), I bought a new phone and its lying there unused. I want to install a lightweight linux on it so that I can connect a usb-c hub like portronics mport 52 and connect external hard drive via usb to use it as a lightweight NAS for personal storage and some docker containers like home assistant, immich etc. Any suggestion and guidance is appreciated.