Interesting that alpine didn't get mentioned, i thought that was the most common option for a slim Linux running inside containers.
"Alpine Linux was chosen as the base distribution due to its low storage requirements, making it more suitable for older devices. Excluding the kernel, a base installation takes up approximately 6 MB"
i guess that would also make a more secure phone, one that is less likely to call it's mother ship.
thanks for the tip!
And it literally rocks at that. I would strongly encourage everyone with an old or small pc/laptop/sbc/whatever that is too resource limited to run a "regular" distro, to try Alpine on it. The amount of resources saved thanks to using musl instead of glibc is astounding.