power menu, redshift, polybar

.config/polybar/scripts/isrunning-service/README.md

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+# Script: isrunning-service
+
+A script that shows if a systemd service is running. It uses `journalctl` to get realtime output.
+
+
+## Configuration
+
+Make sure that your user is member of the group `systemd-journal` to read all events.
+
+
+## Module
+
+```ini
+[module/isrunning-service]
+type = custom/script
+exec = ~/polybar-scripts/isrunning-service.sh
+tail = true
+```

.config/polybar/scripts/isrunning-service/isrunning-service.sh

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+#!/bin/sh
+
+UNIT="docker.service"
+
+journalctl --follow -o cat --unit $UNIT | while read -r; do
+	if [ "$(systemctl is-active "$UNIT")" = "active" ]; then
+        echo "#1"
+    else
+        echo "#2"
+    fi
+done