greengnu
Warzone 2100 (you can download for free as it is an old PC game that went GPL)
gets more on the nose by the day
a search engine for the gemini network protocol
gemini://gemplex.space/search
have 2 flash/hard/whatever drives: A and B
once a month (or at what ever frequency you can sustain)
backup your data to A and next cycle backup your data to B
nothing fancy or technical, just some basic consistent backups.
if you can do that you’ll likely be fine. There are nearly infinitely many enhancements you can do if you are more technical or can follow technical instructions.
That is just the gateway drug to bootstrapping.
Check out https://github.com/fosslinux/live-bootstrap
if you want the real hard stuff.
They already did: https://www.commanderx16.com/
you just probably want something better.
and that is the problem building higher performance requires more advanced lithography and that is expensive and until recently was not even an option for a hobbyist (without taking a mortgage on their house).
Given current stagnation, you need only wait about 10 years for that viable option.
rxvt-unicode with tabbedex.
I refuse to use a terminal emulator that needs more than 100MB of RAM to display 80x24 green text on a black display
checksums at the filesystem level does nothing to protect against memory corruption which can overwrite everything on your disk with null values and a matching checksum; fail to write anything to disk and/or do nothing.
But that is the gamble you take every day with every GB of RAM you have.
the correct answer is Gemini or gopher.
No ECC, absolutely worthless for a NAS if you care about your data.