According to @postcard64 below I’m oversimplifying things (at minimum).

Thanks. In that case is it known which of those two possibilities are most likely?

I thought that SSD fails “better” than HDD because SDD become read-only first.

Anyone know how this compares to FreshRSS?

Update: I see a few differences. It’s mobile friendly and is more simplified in some ways. That’s all good. They say to expect breakage so it mightn’t be as stable yet.

I have read elsewhere that port knocking is just security through obscurity and isn’t worth considering. I found it when searching for ways to set it up and that put me off.