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Yeah, it's something inexpensive that I can leave running on my desk that literally costs pennies to run. Most of my scripts only consume a few MB of RAM and very little CPU, so it makes for a perfect/cheap environment to run them on.

@jesta, what is the reason for RPi per script? Ain't better to run a server with a lot of linux containers? Thanks.

I have a bunch of scripts on one RPi, I'm actually using it as a docker host with multiple containers each running their own scripts. I plan on adding a second one for redundancy, but I don't run them one per device.