waybar: add cpu/gpu/disk usage

config/.config/waybar/config

@@ -2,6 +2,9 @@
   "position": "top",
   "modules-left": [
     "sway/workspaces",
+    "cpu",
+    "custom/gpu-usage",
+    "disk",
     "sway/mode"
   ],
   "modules-right": [
@@ -19,6 +22,18 @@
     "format": "--{}--",
     "tooltip": false
   },
+  "cpu": {
+    "format": "CPU: {usage}%",
+    "interval": 1
+  },
+  "custom/gpu-usage": {
+    "exec": "cat /sys/class/hwmon/hwmon2/device/gpu_busy_percent",
+    "format": "GPU: {}%",
+    "interval": 1
+  },
+  "disk": {
+    "format": "Disk: {used}/{total}"
+  },
   "pulseaudio": {
     "format": "{icon} {volume}%",
     "format-icons": [

config/.config/waybar/style.css

@@ -34,6 +34,13 @@ window.eDP-1 * {
   color: @primary;
 }
 
+#cpu,
+#custom-gpu-usage,
+#disk {
+  margin: 6px;
+  padding: 0;
+}
+
 #tray,
 #pulseaudio,
 #language,