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.
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.
a search engine for the gemini network protocol
https://en.wikipedia.org/wiki/Gemini_(protocol)