more rice stuff

modules/home-manager/polybar.nix

@@ -1,4 +1,4 @@
-{ lib, pkgs, ... }:
+{ pkgs, ... }:
 
 let
   polybar = pkgs.polybar.override { pulseSupport = true; };
@@ -18,6 +18,7 @@ in
     dim        = #565f89
 
     [bar/main]
+    monitor = ''${env:MONITOR:}
     width = 100%
     height = 22pt
     background = ''${colors.background}
@@ -36,8 +37,15 @@ in
 
     tray-position = right
 
+    # Second monitor: same look, no tray, fewer modules (it's narrow when rotated)
+    [bar/secondary]
+    inherit = bar/main
+    modules-right = cpu memory
+    tray-position = none
+
     [module/bspwm]
     type = internal/bspwm
+    pin-workspaces = true
     label-focused = %name%
     label-focused-background = ''${colors.primary}
     label-focused-foreground = ''${colors.background}
@@ -73,19 +81,23 @@ in
     label-muted-foreground = ''${colors.dim}
   '';
 
+  # One bar per monitor. The primary monitor gets "main" (with tray), others get "secondary".
+  # If no monitor is marked primary, the first one listed gets "main".
   xdg.configFile."polybar/launch.sh" = {
     executable = true;
     text = ''
       #!/bin/sh
       ${pkgs.procps}/bin/pkill -x polybar
       while ${pkgs.procps}/bin/pgrep -x polybar >/dev/null; do sleep 0.2; done
-      ${pkgs.util-linux}/bin/setsid -f ${polybar}/bin/polybar main
+
+      LIST=$(${polybar}/bin/polybar --list-monitors)
+      PRIMARY=$(echo "$LIST" | ${pkgs.gnugrep}/bin/grep '(primary)' | ${pkgs.coreutils}/bin/cut -d: -f1)
+      [ -z "$PRIMARY" ] && PRIMARY=$(echo "$LIST" | ${pkgs.coreutils}/bin/head -n1 | ${pkgs.coreutils}/bin/cut -d: -f1)
+
+      for m in $(echo "$LIST" | ${pkgs.coreutils}/bin/cut -d: -f1); do
+        if [ "$m" = "$PRIMARY" ]; then bar=main; else bar=secondary; fi
+        MONITOR=$m ${pkgs.util-linux}/bin/setsid -f ${polybar}/bin/polybar $bar
+      done
     '';
   };
-
-  # home.activation.reloadPolybar = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
-  #   if ${pkgs.procps}/bin/pgrep -x bspwm >/dev/null; then
-  #     DISPLAY=:0 $HOME/.config/polybar/launch.sh || true
-  #   fi
-  # '';
 }