
Apple Mac mini (M4)
My whole fleet lives on a Mac mini on a shelf, running twenty-four hours a day. The cockpit I drive is the M4 Pro; the fleet appliance closing books overnight is an older M2 — the point is that any current Mac mini does this job. Small, silent, and it never sleeps.
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A small mini PC (the non-Mac path)
Not on a Mac? You don't need to be. A small mini PC — Beelink, Minisforum, GMKtec — does the same job: quiet, cheap, and happy to be left running forever in a corner. This is what I tell students on Windows to buy.
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APC Back-UPS 425VA (BE425M)
The boring box that keeps the appliance alive through a blink — the exact one under the desk.
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