Customize the secondary free space indicator

machines/desktop.nix

@@ -6,6 +6,7 @@
     name = "DanixDesktop";
     eth = "eno1";
     wlan = null;
+    secondary-fs = "/mnt/henning";
   };
   profiles.base.enable = true;
   profiles.xsession.enable = true;

profiles/base/default.nix

@@ -6,10 +6,14 @@ in {
 
   options.machine = {
     name = lib.mkOption {
-      type = "str";
+      type = lib.types.str;
     };
     eth = lib.mkOption {};
     wlan = lib.mkOption {};
+    secondary-fs = lib.mkOption {
+      type = lib.types.str;
+      default = "$HOME";
+    };
   };
 
   options.profiles.base = {

profiles/xsession/polybar.nix

@@ -115,7 +115,7 @@ in
           interval = 25;
 
           mount-0 = "/";
-          mount-1 = "/mnt/henning";
+          mount-1 = config.machine.secondary-fs;
 
           label-mounted = "%{F#0a81f5}%mountpoint%%{F-}: %free%";
           label-unmounted = "%mountpoint% not mounted";