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Sets GNOME wallpaper to latest Himawari image

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Aalpha-beta-soup
Last edited Jan 8, 2020
Created on Jan 7, 2020

A cron job refreshes the GNOME desktop wallpaper every 15 minutes with the latest full-disk true-color image from the Himawari 8 satellite, as provided by the Colorado State University RAMMB feed. The script downloads the JPEG via `wget` and applies it using `gsettings` to set both the `picture-uri` and `picture-options` (scaled) properties. It relies solely on standard shell utilities and the GNOME settings API, with no rendering or visualization library involved.

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