[eww] Show only root partition on vega

home-manager/features/eww/config/vertical-statusbar.yuck

@@ -17,6 +17,18 @@
   (workspaces :workspaces-json workspaces-json-hdmi-a-1)
 )
 
+(defwidget disks-vega []
+  (system-monitor-group
+    :name "Disks"
+    (system-monitor-gauge
+      :name "Root"
+      :text-value {EWW_DISK['/'].free / powi(2, 30)}
+      :gauge-pct {EWW_DISK['/'].used_perc}
+      :units " GB"
+    )
+  )
+)
+
 (defwidget vertical-statusbar []
   (box
     :orientation "v"
@@ -32,7 +44,7 @@
       (system-monitor-perf-cpu)
       (system-monitor-perf-gpu)
     )
-    (system-monitor-disks)
+    (disks-vega)
     (system-monitor-net :interface "enp3s0")
     (system-monitor-audio)
   )