I like your prototype, and people are already giving fantastic hints to make this even better; information about the geographic location of the offer would be my priority (EU).

This is particularly useful from an environmental point of view - all these machines can serve a good purpose for decades to come. Mini PCs use less energy, and every used machine re-used means one PC less built, saving minerals and energy.

I recently installed a DELL Micro-PC, which I intended as an X11-Terminal. It turns out that it's also a fine machine for most local work like editing and email (except machine learning and heavy development work), so more beefy machines can stay off.