diff --git a/README.md b/README.md
index 86d1a06..a431203 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,109 @@ imports = [ inputs.nova-shell.homeModules.default ];
 programs.nova-shell.enable = true;
 ```
 
+## Configuration
+
+Surprisingly, the robot managed to wire up a Home Manager module that mostly works.
+Here is how to make it do things.
+
+### Flake setup
+
+```nix
+# flake.nix
+inputs = {
+  nova-shell.url = "git+https://git.berlin.ccc.de/vinzenz/nova-shell";
+  nova-shell.inputs.nixpkgs.follows = "nixpkgs";
+};
+```
+
+```nix
+# home.nix
+imports = [ inputs.nova-shell.homeModules.default ];
+```
+
+### Turning it on
+
+```nix
+programs.nova-shell.enable = true;
+```
+
+This installs the bar, the Symbols Nerd Font, and a systemd user service that
+starts with `graphical-session.target`. If you use
+[stylix](https://github.com/danth/stylix), colors and fonts are populated
+automatically — one fewer thing for the AI to have gotten wrong.
+
+### Disabling modules
+
+All modules are on by default because the robot was optimistic. Set any to
+`false` to get rid of them. Disabling `weather` also skips pulling in
+`wttrbar`, which is the one genuinely useful thing the module system does.
+
+```nix
+programs.nova-shell.modules = {
+  weather     = false;  # also removes the wttrbar dependency
+  bluetooth   = false;  # unless you enjoy a ghost icon on your desktop
+  backlight   = false;  # desktops don't have screens that dim, allegedly
+  battery     = false;  # see above
+  temperature = false;  # ignorance is thermally efficient
+  disk        = false;
+  wlogout     = false;  # if you enjoy living dangerously without a logout button
+};
+```
+
+Full list of things you can disable: `tray`, `windowTitle`, `clock`,
+`notifications`, `mpris`, `volume`, `bluetooth`, `backlight`, `network`,
+`powerProfile`, `idleInhibitor`, `weather`, `temperature`, `cpu`, `memory`,
+`disk`, `battery`, `wlogout`.
+
+### Theme
+
+Theme keys merge on top of whatever stylix provides, so you only need to
+specify what you want to override. The AI picked Catppuccin Mocha as the
+fallback, because of course it did.
+
+```nix
+programs.nova-shell.theme = {
+  barHeight  = 28;
+  barOpacity = 0.85;
+  barPadding = 10;
+  barSpacing = 8;
+  radius     = 6;
+  fontSize   = 13;
+  fontFamily = "JetBrains Mono";
+
+  # override individual palette entries if stylix's choices offend you
+  colors.base00 = "#1a1a2e";
+  colors.base05 = "#e0e0f0";
+};
+```
+
+Full list of theme keys and their defaults:
+
+| Key | Default | Controls |
+|-----|---------|----------|
+| `colors.base00`–`base0F` | Catppuccin Mocha | Base16 palette |
+| `fontFamily` | `"sans-serif"` | Bar text font |
+| `iconFontFamily` | `"Symbols Nerd Font"` | Nerd font for icons |
+| `fontSize` | `12` | Base font size (px) |
+| `barHeight` | `32` | Bar height (px) |
+| `barOpacity` | `0.9` | Bar and flyout background opacity |
+| `barPadding` | `8` | Left/right bar content margin (px) |
+| `barSpacing` | `12` | Gap between modules (px) |
+| `moduleSpacing` | `4` | Icon-to-label gap within a module (px) |
+| `radius` | `4` | Corner radius for flyouts and menus (px) |
+
+### Systemd service
+
+Enabled by default. To attach it to a different target or disable it entirely
+because you have opinions about service management:
+
+```nix
+programs.nova-shell.systemd = {
+  enable = true;
+  target = "niri.service";
+};
+```
+
 ## Contributing
 
 Sure, why not. It can't get much worse.
diff --git a/modules/Backlight.qml b/modules/Backlight.qml
index e994c8e..04f05f7 100644
--- a/modules/Backlight.qml
+++ b/modules/Backlight.qml
@@ -5,7 +5,7 @@ import "." as M
 M.BarSection {
     id: root
     spacing: M.Theme.moduleSpacing
-    visible: percent > 0
+    visible: M.Modules.backlight && percent > 0
     tooltip: "Brightness: " + root.percent + "%"
 
     property int percent: 0
diff --git a/modules/Bar.qml b/modules/Bar.qml
index ecbebb3..909b0fd 100644
--- a/modules/Bar.qml
+++ b/modules/Bar.qml
@@ -39,8 +39,8 @@ PanelWindow {
             anchors.verticalCenter: parent.verticalCenter
             spacing: M.Theme.barSpacing
 
-            M.Clock {}
-            M.Notifications {}
+            M.Clock { visible: M.Modules.clock }
+            M.Notifications { visible: M.Modules.notifications }
         }
 
         // ---- left ----
@@ -52,9 +52,11 @@ PanelWindow {
 
             M.Tray {
                 bar: bar
+                visible: M.Modules.tray
             }
             M.WindowTitle {
                 Layout.maximumWidth: 400
+                visible: M.Modules.windowTitle
             }
         }
 
@@ -69,19 +71,19 @@ PanelWindow {
                 Layout.fillWidth: true
             }
             M.Mpris {}
-            M.Volume {}
+            M.Volume { visible: M.Modules.volume }
             M.Bluetooth {}
             M.Backlight {}
-            M.Network {}
-            M.PowerProfile {}
-            M.IdleInhibitor {}
-            M.Weather {}
-            M.Temperature {}
-            M.Cpu {}
-            M.Memory {}
-            M.Disk {}
+            M.Network { visible: M.Modules.network }
+            M.PowerProfile { visible: M.Modules.powerProfile }
+            M.IdleInhibitor { visible: M.Modules.idleInhibitor }
+            M.Weather { visible: M.Modules.weather }
+            M.Temperature { visible: M.Modules.temperature }
+            M.Cpu { visible: M.Modules.cpu }
+            M.Memory { visible: M.Modules.memory }
+            M.Disk { visible: M.Modules.disk }
             M.Battery {}
-            M.Wlogout {}
+            M.Wlogout { visible: M.Modules.wlogout }
         }
     }
 }
diff --git a/modules/Battery.qml b/modules/Battery.qml
index 3e5c0a2..a8cf911 100644
--- a/modules/Battery.qml
+++ b/modules/Battery.qml
@@ -5,7 +5,7 @@ import "." as M
 M.BarSection {
     id: root
     spacing: M.Theme.moduleSpacing
-    visible: UPower.displayDevice?.isLaptopBattery ?? false
+    visible: M.Modules.battery && (UPower.displayDevice?.isLaptopBattery ?? false)
     tooltip: {
         const state = root.charging ? "Charging" : "Discharging";
         const t = root.charging ? root.dev?.timeToFull : root.dev?.timeToEmpty;
diff --git a/modules/Bluetooth.qml b/modules/Bluetooth.qml
index d0eafc3..b0b26fc 100644
--- a/modules/Bluetooth.qml
+++ b/modules/Bluetooth.qml
@@ -5,7 +5,7 @@ import "." as M
 M.BarSection {
     id: root
     spacing: M.Theme.moduleSpacing
-    visible: root.state !== "unavailable"
+    visible: M.Modules.bluetooth && root.state !== "unavailable"
     tooltip: {
         if (root.state === "off")       return "Bluetooth: off";
         if (root.state === "connected") return "Bluetooth: " + root.device;
@@ -61,10 +61,9 @@ M.BarSection {
         anchors.verticalCenter: parent.verticalCenter
     }
 
-    MouseArea {
-        anchors.fill: parent
+    TapHandler {
         cursorShape: Qt.PointingHandCursor
-        onClicked: {
+        onTapped: {
             toggle.cmd = root.state === "off" ? "on" : "off";
             toggle.running = true;
         }
diff --git a/modules/Modules.qml b/modules/Modules.qml
new file mode 100644
index 0000000..4476b57
--- /dev/null
+++ b/modules/Modules.qml
@@ -0,0 +1,48 @@
+pragma Singleton
+
+import QtQuick
+import Quickshell
+import Quickshell.Io
+
+QtObject {
+    id: root
+
+    property bool tray: true
+    property bool windowTitle: true
+    property bool clock: true
+    property bool notifications: true
+    property bool mpris: true
+    property bool volume: true
+    property bool bluetooth: true
+    property bool backlight: true
+    property bool network: true
+    property bool powerProfile: true
+    property bool idleInhibitor: true
+    property bool weather: true
+    property bool temperature: true
+    property bool cpu: true
+    property bool memory: true
+    property bool disk: true
+    property bool battery: true
+    property bool wlogout: true
+
+    property FileView _file: FileView {
+        path: (Quickshell.env("XDG_CONFIG_HOME") || (Quickshell.env("HOME") + "/.config")) + "/nova-shell/modules.json"
+        watchChanges: true
+        onFileChanged: reload()
+        onLoaded: root._apply(text())
+    }
+
+    function _apply(raw) {
+        let data;
+        try {
+            data = JSON.parse(raw);
+        } catch (e) {
+            return;
+        }
+        for (const k of Object.keys(data)) {
+            if (k in root && typeof root[k] === "boolean")
+                root[k] = data[k];
+        }
+    }
+}
diff --git a/modules/Mpris.qml b/modules/Mpris.qml
index ef08443..060d06a 100644
--- a/modules/Mpris.qml
+++ b/modules/Mpris.qml
@@ -5,7 +5,7 @@ import "." as M
 M.BarSection {
     id: root
     spacing: M.Theme.moduleSpacing
-    visible: player !== null
+    visible: M.Modules.mpris && player !== null
     tooltip: {
         const p = root.player;
         if (!p)
@@ -14,7 +14,7 @@ M.BarSection {
         if (p.trackTitle)
             parts.push(p.trackTitle);
         if (p.trackArtists?.length)
-            parts.push(p.trackArtists.join(", "));
+            parts.push(Array.isArray(p.trackArtists) ? p.trackArtists.join(", ") : p.trackArtists);
         if (p.trackAlbum)
             parts.push(p.trackAlbum);
         return parts.join("\n") || p.identity;
diff --git a/modules/qmldir b/modules/qmldir
index 4805e2f..8c084a6 100644
--- a/modules/qmldir
+++ b/modules/qmldir
@@ -1,6 +1,7 @@
 module modules
 singleton Theme 1.0 Theme.qml
 singleton FlyoutState 1.0 FlyoutState.qml
+singleton Modules 1.0 Modules.qml
 Bar 1.0 Bar.qml
 BarSection 1.0 BarSection.qml
 Flyout 1.0 Flyout.qml
diff --git a/nix/hm-module.nix b/nix/hm-module.nix
index 656a1d9..aae7fd2 100644
--- a/nix/hm-module.nix
+++ b/nix/hm-module.nix
@@ -52,6 +52,39 @@ in
       description = "nova-shell package to use.";
     };
 
+    modules = lib.mkOption {
+      description = "Enable or disable individual bar modules.";
+      default = { };
+      type = lib.types.submodule {
+        options = lib.genAttrs
+          [
+            "tray"
+            "windowTitle"
+            "clock"
+            "notifications"
+            "mpris"
+            "volume"
+            "bluetooth"
+            "backlight"
+            "network"
+            "powerProfile"
+            "idleInhibitor"
+            "weather"
+            "temperature"
+            "cpu"
+            "memory"
+            "disk"
+            "battery"
+            "wlogout"
+          ]
+          (name: lib.mkOption {
+            type = lib.types.bool;
+            default = true;
+            description = "Enable the ${name} module.";
+          });
+      };
+    };
+
     theme = lib.mkOption {
       type = lib.types.attrsOf lib.types.anything;
       default = { };
@@ -80,10 +113,15 @@ in
   config = lib.mkIf cfg.enable {
     programs.nova-shell.theme = lib.mkIf stylixAvailable (lib.mkDefault stylixTheme);
 
-    home.packages = [
-      self.packages.${pkgs.stdenv.hostPlatform.system}.nova-shell-cli
-      pkgs.nerd-fonts.symbols-only
-    ];
+    home.packages =
+      [
+        self.packages.${pkgs.stdenv.hostPlatform.system}.nova-shell-cli
+        pkgs.nerd-fonts.symbols-only
+      ]
+      ++ lib.optional cfg.modules.weather pkgs.wttrbar;
+
+    xdg.configFile."nova-shell/modules.json".source =
+      (pkgs.formats.json { }).generate "nova-shell-modules.json" cfg.modules;
 
     xdg.configFile."nova-shell/theme.json".source =
       (pkgs.formats.json { }).generate "nova-shell-theme.json"