more rice stuff

modules/home-manager/bspwm.nix

@@ -1,34 +1,65 @@
-{ lib, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
+let
+  cfg = config.my.bspwm;
+in
 {
-  xdg.configFile."bspwm/bspwmrc" = {
-    executable = true;
-    text = ''
-      #!/bin/sh
+  options.my.bspwm.monitors = lib.mkOption {
+    default = [ ];
+    description = "Monitors left to right. Empty means single-monitor defaults.";
+    type = lib.types.listOf (lib.types.submodule {
+      options = {
+        name = lib.mkOption { type = lib.types.str; };
+        xrandr = lib.mkOption {
+          type = lib.types.str;
+          default = "--auto";
+          description = "Arguments for xrandr --output <name>.";
+        };
+        desktops = lib.mkOption { type = lib.types.listOf lib.types.str; };
+      };
+    });
+  };
 
-      bspc monitor -d 1 2 3 4 5 6 7 8 9
+  config = {
+    xdg.configFile."bspwm/bspwmrc" = {
+      executable = true;
+      text = ''
+        #!/bin/sh
 
-      # Gaps and borders
-      bspc config window_gap          10
-      bspc config border_width        2
-      bspc config focused_border_color  "#7aa2f7"
-      bspc config normal_border_color   "#292e42"
+        ${lib.optionalString (cfg.monitors != [ ]) ''
+          ${pkgs.xrandr}/bin/xrandr ${lib.concatMapStringsSep " "
+            (m: "--output ${m.name} ${m.xrandr}") cfg.monitors}
+        ''}
+        ${if cfg.monitors == [ ]
+          then "bspc monitor -d 1 2 3 4 5 6 7 8 9"
+          else lib.concatMapStringsSep "\n"
+            (m: "bspc monitor ${m.name} -d ${lib.concatStringsSep " " m.desktops}")
+            cfg.monitors}
 
-      # Layout behaviour
-      bspc config split_ratio         0.50
-      bspc config borderless_monocle  true
-      bspc config gapless_monocle     true
+        # Gaps and borders
+        bspc config window_gap          10
+        bspc config border_width        2
+        bspc config focused_border_color  "#7aa2f7"
+        bspc config normal_border_color   "#292e42"
 
-      # Launch polybar
-      ~/.config/polybar/launch.sh
+        # Layout behaviour
+        bspc config split_ratio         0.50
+        bspc config borderless_monocle  true
+        bspc config gapless_monocle     true
+
+        # Launch polybar
+        ~/.config/polybar/launch.sh
+
+        # Wallpapers
+        [ -x ~/.config/wallpaper/set.sh ] && ~/.config/wallpaper/set.sh
+      '';
+    };
+
+    home.activation.reloadBspwm = lib.hm.dag.entryAfter [ "linkGeneration" ] ''
+      if ${pkgs.procps}/bin/pgrep -x bspwm >/dev/null; then
+        PATH=${pkgs.bspwm}/bin:$PATH DISPLAY=:0 $HOME/.config/bspwm/bspwmrc \
+          || echo "bspwmrc reload failed" >&2
+      fi
     '';
   };
-  
-  home.activation.reloadBspwm = lib.hm.dag.entryAfter [ "linkGeneration" ] ''
-    if ${pkgs.procps}/bin/pgrep -x bspwm >/dev/null; then
-      PATH=${pkgs.bspwm}/bin:$PATH DISPLAY=:0 $HOME/.config/bspwm/bspwmrc \
-        || echo "bspwmrc reload failed" >&2
-    fi
-  '';
-
 }

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
-  # '';
 }

modules/home-manager/wallpaper.nix

@@ -0,0 +1,26 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.my.wallpapers;
+  args = lib.concatStringsSep " " (lib.mapAttrsToList
+    (monitor: img: "--output ${monitor} --zoom ${lib.escapeShellArg img}") cfg);
+in
+{
+  options.my.wallpapers = lib.mkOption {
+    type = lib.types.attrsOf lib.types.path;
+    default = { };
+    description = "Wallpaper image per monitor output name.";
+  };
+
+  config = lib.mkIf (cfg != { }) {
+    home.packages = [ pkgs.xwallpaper ];
+
+    xdg.configFile."wallpaper/set.sh" = {
+      executable = true;
+      text = ''
+        #!/bin/sh
+        ${pkgs.xwallpaper}/bin/xwallpaper ${args}
+      '';
+    };
+  };
+}