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For me it's just "a hobby" nowadays, as well. I don't want to work in information technology departments anymore, Floofy posted the fitting image beforehand. But the knowledge comes in handy if one develops industrial laser! hardware as example - which costs a lot - and is dependent on IT / software. You can select the right people for their individual jobs if you know which steps and tasks they have to fulfill exactly.
Most personal managers have not the slightest of idea of the tech field they actually hire people for, as such how would they know if those are just faking knowledge or are actually "home boys, but with years of experience and ways undervalued".
Ah, regarding my NAS solution:
The main reason why I am planning on setting such a thing up in each of my basecamps is another one:
You can set it up as a home automation central. Including DVR, digital video recording (station) over PoE linked cameras, which are rugged against all WiFi / BT / WWAN communication jammers, which are used quite often nowadays on thefts.. (costs 100-400$, such a device - and does exactly what the name says: it blocks everything in a specific frequency range by outputting high power scrambled mess).
As such you can add automatic alarms, a whole sensor network (over one of the home automation connectivity standards) and so on. This makes it - as whole solution - very energy efficient.
The main system with some PoE cameras would not take more than a few dozen watts, if the cameras are efficient. And it would as well record, allow full control over the whole home automation, you could even add termination scripts and set up remote fuses (explosives) as response to a push message. Such features are hard to set up with a "buyable" system. And those take mostly 150+W with just 3-4 cameras.. that's a lot for a few features.