The best desktop automation system would take HDMI input and output USB keystrokes and mouse movements so that it can be plugged into any computer transparently, including work computers.
You don't need hdmi out, just ability to do screenshots, which easy to script.
Arguably though, browser automation gets you 95% of the way there for most things.
if you can attach a local llm...hdmi is airgapped (sort of)...
the operating computer requires no processing power or install....
it plugs into any interface............
i plug it into a scada...............
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