Live earth wallpaper blog post

Author: derdilla

content/blog/earth-wallpaper.md

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++++
+title = "Earth Wallpaper"
+description = "Live satelite imagery makes for a pretty cool wallpaper - here is how to do it."
+date = 2025-10-20
+template = "blog-entry.html"
++++
+
+I just wanted to share this cool bash script I hacked together after finding an [esa API](https://view.eumetsat.int/geoserver/ows?service=WMS&request=GetMap&version=1.3.0&layers=mtg_fd:rgb_geocolour&styles=&format=image/png&crs=EPSG:4326&bbox=30,-15,59,38&width=2560&height=1440) that provides fresh satelite images every 10 minutes.
+
+```bash
+#!/usr/bin/bash
+
+SWAYBG_PID=""
+
+while true
+do
+	if [ -n "$SWAYBG_PID" ]; then
+        sleep 600
+    fi
+
+	curl --output "$HOME/Desktop/.bg.png" "https://view.eumetsat.int/geoserver/ows?service=WMS\
+&request=GetMap&version=1.3.0&layers=mtg_fd:rgb_geocolour\
+&styles=&format=image/png&crs=EPSG:4326\
+&bbox=30,-15,59,38\
+&width=2560&height=1440"
+	
+	if [ -n "$SWAYBG_PID" ]; then
+        kill "$SWAYBG_PID" 2>/dev/null
+    fi
+
+	swaybg -i $HOME/Desktop/.bg.png &
+	SWAYBG_PID=$!
+done
+```
+
+There might be a better way to do this, but putting this into my autostart config works good enough for me. It should work on most wayland based compositors, although I only tested it on the new COSMIC compositor.
+
+You can modify the displayed part of the earth by changing the `bbox` argument (minLat, minLong, maxLat, malLon) and adjust for different monitor sizes with the `width` and `height` arguments. Just make sure you stick with correct proportions – the api doesn't do that for you.