diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 35984d7..894e6b5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -72,7 +72,8 @@ extension:
     - apt update
     - apt install --no-install-recommends -y gettext libglib2.0-bin libglib2.0-dev-bin meson zip
   script:
-    - meson builddir -Dpack=true -Dpackdir=.
+    - if [ -z "$CI_COMMIT_TAG" ]; then BUILD_TYPE=debug; else BUILD_TYPE=release; fi
+    - meson builddir -Dbuildtype=$BUILD_TYPE -Dpack=true -Dpackdir=.
     - meson install -C builddir
   artifacts:
     name: $CI_COMMIT_REF_NAME
diff --git a/src/debug.js b/src/debug.js
new file mode 100644
index 0000000..89b08b4
--- /dev/null
+++ b/src/debug.js
@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: 2022 Romain Vigier <contact AT romainvigier.fr>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+const { extensionUtils } = imports.misc;
+
+const Me = extensionUtils.getCurrentExtension();
+
+/**
+ * Print a message in debug builds.
+ *
+ * @param  {string} msg Message to print.
+ */
+function message(msg) {
+    if ('@BUILD_TYPE@' === 'debug') // eslint-disable-line no-constant-condition
+        console.log(`[${Me.metadata.name}] ${msg}`);
+}
diff --git a/src/extension.js b/src/extension.js
index 04275fa..378aafe 100644
--- a/src/extension.js
+++ b/src/extension.js
@@ -8,6 +8,7 @@ const { extensionUtils } = imports.misc;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { SwitcherCommands } = Me.imports.modules.SwitcherCommands;
@@ -24,13 +25,13 @@ class NightThemeSwitcher {
     #switcherCommands = null;
 
     constructor() {
-        console.debug('Initializing extension...');
+        debug.message('Initializing extension...');
         extensionUtils.initTranslations();
-        console.debug('Extension initialized.');
+        debug.message('Extension initialized.');
     }
 
     enable() {
-        console.debug('Enabling extension...');
+        debug.message('Enabling extension...');
         this.#timer = new Timer();
         this.#switcherThemeGtk = new SwitcherThemeGtk({ timer: this.#timer });
         this.#switcherThemeIcon = new SwitcherThemeIcon({ timer: this.#timer });
@@ -45,14 +46,14 @@ class NightThemeSwitcher {
         this.#switcherThemeCursor.enable();
         this.#switcherCommands.enable();
 
-        console.debug('Extension enabled.');
+        debug.message('Extension enabled.');
     }
 
     disable() {
         // Extension won't be disabled in `unlock-dialog` session mode. This is
         // to enable the color scheme switch while the lock screen is displayed,
         // as the background image and the shell theme are visible in this mode.
-        console.debug('Disabling extension...');
+        debug.message('Disabling extension...');
 
         if (this.#switcherThemeGtk) {
             this.#switcherThemeGtk.disable();
@@ -79,7 +80,7 @@ class NightThemeSwitcher {
             this.#timer = null;
         }
 
-        console.debug('Extension disabled.');
+        debug.message('Extension disabled.');
     }
 }
 
diff --git a/src/meson.build b/src/meson.build
index abe952f..2178d9f 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -12,6 +12,15 @@ configure_file(
   install_dir: INSTALL_DIR
 )
 
+configure_file(
+  input: 'debug.js',
+  output: 'debug.js',
+  configuration: {
+    'BUILD_TYPE': get_option('buildtype')
+  },
+  install_dir: INSTALL_DIR
+)
+
 main = [
   'extension.js',
   'prefs.js',
diff --git a/src/modules/Switcher.js b/src/modules/Switcher.js
index 715426a..258d440 100644
--- a/src/modules/Switcher.js
+++ b/src/modules/Switcher.js
@@ -6,6 +6,7 @@ const { extensionUtils } = imports.misc;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Time } = Me.imports.enums.Time;
@@ -45,25 +46,25 @@ var Switcher = class {
     }
 
     enable() {
-        console.debug(`Enabling ${this.#name} switcher...`);
+        debug.message(`Enabling ${this.#name} switcher...`);
         this.#watchStatus();
         if (this.#settings.get_boolean('enabled')) {
             this.#connectTimer();
             this.#onTimeChanged();
         }
-        console.debug(`${this.#name} switcher enabled.`);
+        debug.message(`${this.#name} switcher enabled.`);
     }
 
     disable() {
-        console.debug(`Disabling ${this.#name} switcher...`);
+        debug.message(`Disabling ${this.#name} switcher...`);
         this.#disconnectTimer();
         this.#unwatchStatus();
-        console.debug(`${this.#name} switcher disabled.`);
+        debug.message(`${this.#name} switcher disabled.`);
     }
 
 
     #watchStatus() {
-        console.debug(`Watching ${this.#name} switching status...`);
+        debug.message(`Watching ${this.#name} switching status...`);
         this.#statusConnection = this.#settings.connect('changed::enabled', this.#onStatusChanged.bind(this));
     }
 
@@ -72,11 +73,11 @@ var Switcher = class {
             this.#settings.disconnect(this.#statusConnection);
             this.#statusConnection = null;
         }
-        console.debug(`Stopped watching ${this.#name} switching status.`);
+        debug.message(`Stopped watching ${this.#name} switching status.`);
     }
 
     #connectTimer() {
-        console.debug(`Connecting ${this.#name} switcher to Timer...`);
+        debug.message(`Connecting ${this.#name} switcher to Timer...`);
         this.#timerConnection = this.#timer.connect('time-changed', this.#onTimeChanged.bind(this));
     }
 
@@ -85,12 +86,12 @@ var Switcher = class {
             this.#timer.disconnect(this.#timerConnection);
             this.#timerConnection = null;
         }
-        console.debug(`Disconnected ${this.#name} switcher from Timer.`);
+        debug.message(`Disconnected ${this.#name} switcher from Timer.`);
     }
 
 
     #onStatusChanged() {
-        console.debug(`${this.#name} switching has been ${this.#settings.get_boolean('enabled') ? 'enabled' : 'disabled'}.`);
+        debug.message(`${this.#name} switching has been ${this.#settings.get_boolean('enabled') ? 'enabled' : 'disabled'}.`);
         this.disable();
         this.enable();
     }
diff --git a/src/modules/SwitcherCommands.js b/src/modules/SwitcherCommands.js
index 0f6eda9..2191ce4 100644
--- a/src/modules/SwitcherCommands.js
+++ b/src/modules/SwitcherCommands.js
@@ -6,6 +6,7 @@ const { extensionUtils } = imports.misc;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Switcher } = Me.imports.modules.Switcher;
@@ -40,6 +41,6 @@ var SwitcherCommands = class extends Switcher {
         if (!command)
             return;
         GLib.spawn_async(null, ['sh', '-c', command], null, GLib.SpawnFlags.SEARCH_PATH, null);
-        console.debug(`Spawned ${time} command.`);
+        debug.message(`Spawned ${time} command.`);
     }
 };
diff --git a/src/modules/SwitcherTheme.js b/src/modules/SwitcherTheme.js
index 502c513..a5a1cc2 100644
--- a/src/modules/SwitcherTheme.js
+++ b/src/modules/SwitcherTheme.js
@@ -7,6 +7,7 @@ const { extensionManager } = imports.ui.main;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Switcher } = Me.imports.modules.Switcher;
@@ -77,7 +78,7 @@ var SwitcherTheme = class extends Switcher {
     }
 
     #connectSettings() {
-        console.debug(`Connecting ${this.#name} switcher to settings...`);
+        debug.message(`Connecting ${this.#name} switcher to settings...`);
         this.#settingsConnections.push({
             settings: this.#settings,
             id: this.#settings.connect('changed::day', this.#onDayVariantChanged.bind(this)),
@@ -97,22 +98,22 @@ var SwitcherTheme = class extends Switcher {
     #disconnectSettings() {
         this.#settingsConnections.forEach(connection => connection.settings.disconnect(connection.id));
         this.#settingsConnections = [];
-        console.debug(`Disconnected ${this.#name} switcher from settings.`);
+        debug.message(`Disconnected ${this.#name} switcher from settings.`);
     }
 
 
     #onDayVariantChanged() {
-        console.debug(`Day ${this.#name} variant changed to '${this.#settings.get_string('day')}'.`);
+        debug.message(`Day ${this.#name} variant changed to '${this.#settings.get_string('day')}'.`);
         this.#updateSystemTheme();
     }
 
     #onNightVariantChanged() {
-        console.debug(`Night ${this.#name} variant changed to '${this.#settings.get_string('night')}'.`);
+        debug.message(`Night ${this.#name} variant changed to '${this.#settings.get_string('night')}'.`);
         this.#updateSystemTheme();
     }
 
     #onSystemThemeChanged() {
-        console.debug(`System ${this.#name} changed to '${this.#systemSettings.get_string(this.#themeKey)}'.`);
+        debug.message(`System ${this.#name} changed to '${this.#systemSettings.get_string(this.#themeKey)}'.`);
         this.#updateCurrentVariant();
     }
 
@@ -130,7 +131,7 @@ var SwitcherTheme = class extends Switcher {
     #updateSystemTheme() {
         if (this.#timer.time === Time.UNKNOWN)
             return;
-        console.debug(`Setting the ${this.#timer.time} ${this.#name} variant...`);
+        debug.message(`Setting the ${this.#timer.time} ${this.#name} variant...`);
         if (this.#systemSettings)
             this.#systemSettings.set_string(this.#themeKey, this.#settings.get_string(this.#timer.time));
         else if (this.#noSettingsUpdateSystemThemeCallback)
diff --git a/src/modules/Timer.js b/src/modules/Timer.js
index ba4e0b9..baf87e3 100644
--- a/src/modules/Timer.js
+++ b/src/modules/Timer.js
@@ -9,6 +9,7 @@ const { main } = imports.ui;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Time } = Me.imports.enums.Time;
@@ -53,20 +54,20 @@ var Timer = class {
     }
 
     enable() {
-        console.debug('Enabling Timer...');
+        debug.message('Enabling Timer...');
         this.#connectSettings();
         this.#createSources();
         this.#connectSources();
         this.#enableSources();
-        console.debug('Timer enabled.');
+        debug.message('Timer enabled.');
     }
 
     disable() {
-        console.debug('Disabling Timer...');
+        debug.message('Disabling Timer...');
         this.#disconnectSources();
         this.#disableSources();
         this.#disconnectSettings();
-        console.debug('Timer disabled.');
+        debug.message('Timer disabled.');
     }
 
 
@@ -77,7 +78,7 @@ var Timer = class {
     set time(time) {
         if (time === this.#time)
             return;
-        console.debug(`Time has changed to ${time}.`);
+        debug.message(`Time has changed to ${time}.`);
         this.#time = time;
         if (this.#settings.get_boolean('transition'))
             main.layoutManager.screenTransition.run();
@@ -87,7 +88,7 @@ var Timer = class {
 
 
     #connectSettings() {
-        console.debug('Connecting Timer to settings...');
+        debug.message('Connecting Timer to settings...');
         this.#settingsConnections.push({
             settings: this.#colorSettings,
             id: this.#colorSettings.connect('changed::night-light-enabled', this.#onSourceChanged.bind(this)),
@@ -117,7 +118,7 @@ var Timer = class {
     #disconnectSettings() {
         this.#settingsConnections.forEach(connection => connection.settings.disconnect(connection.id));
         this.#settingsConnections = [];
-        console.debug('Disconnected Timer from settings.');
+        debug.message('Disconnected Timer from settings.');
     }
 
     #createSources() {
@@ -151,7 +152,7 @@ var Timer = class {
     }
 
     #connectSources() {
-        console.debug('Connecting to time sources...');
+        debug.message('Connecting to time sources...');
         this.#sources.forEach(source => this.#timeConnections.push({
             source,
             id: source.connect('time-changed', this.#onTimeChanged.bind(this)),
@@ -161,7 +162,7 @@ var Timer = class {
     #disconnectSources() {
         this.#timeConnections.forEach(connection => connection.source.disconnect(connection.id));
         this.#timeConnections = [];
-        console.debug('Disconnected from time sources.');
+        debug.message('Disconnected from time sources.');
     }
 
 
@@ -185,17 +186,17 @@ var Timer = class {
 
 
     #getSource() {
-        console.debug('Getting time source...');
+        debug.message('Getting time source...');
 
         let source;
         if (this.#settings.get_boolean('manual-time-source')) {
             source = this.#settings.get_string('time-source');
-            console.debug(`Time source is forced to ${source}.`);
+            debug.message(`Time source is forced to ${source}.`);
             if (
                 (source === 'nightlight' && !this.#colorSettings.get_boolean('night-light-enabled')) ||
                 (source === 'location' && !this.#locationSettings.get_boolean('enabled'))
             ) {
-                console.debug(`Unable to choose ${source} time source, falling back to manual schedule.`);
+                debug.message(`Unable to choose ${source} time source, falling back to manual schedule.`);
                 source = 'schedule';
                 this.#settings.set_string('time-source', source);
             }
@@ -206,7 +207,7 @@ var Timer = class {
                 source = 'location';
             else
                 source = 'schedule';
-            console.debug(`Time source is ${source}.`);
+            debug.message(`Time source is ${source}.`);
             this.#settings.set_string('time-source', source);
         }
         return source;
diff --git a/src/modules/TimerLocation.js b/src/modules/TimerLocation.js
index f9a5110..50d4ca5 100644
--- a/src/modules/TimerLocation.js
+++ b/src/modules/TimerLocation.js
@@ -7,6 +7,7 @@ const Signals = imports.signals;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Time } = Me.imports.enums.Time;
@@ -46,22 +47,22 @@ var TimerLocation = class {
     }
 
     enable() {
-        console.debug('Enabling Location Timer...');
+        debug.message('Enabling Location Timer...');
         this.#cancellable = new Gio.Cancellable();
         this.#connectToGeoclue();
         this.#watchForTimeChange();
         this.#regularlyUpdateSuntimes();
-        console.debug('Location Timer enabled.');
+        debug.message('Location Timer enabled.');
     }
 
     disable() {
-        console.debug('Disabling Location Timer...');
+        debug.message('Disabling Location Timer...');
         this.#stopRegularlyUpdatingSuntimes();
         this.#stopWatchingForTimeChange();
         this.#disconnectFromGeoclue();
         this.#cancellable.cancel();
         this.#cancellable = null;
-        console.debug('Location Timer disabled.');
+        debug.message('Location Timer disabled.');
     }
 
 
@@ -71,7 +72,7 @@ var TimerLocation = class {
 
 
     #connectToGeoclue() {
-        console.debug('Connecting to GeoClue...');
+        debug.message('Connecting to GeoClue...');
         Geoclue.Simple.new(
             'org.gnome.Shell',
             Geoclue.AccuracyLevel.CITY,
@@ -81,24 +82,24 @@ var TimerLocation = class {
     }
 
     #disconnectFromGeoclue() {
-        console.debug('Disconnecting from GeoClue...');
+        debug.message('Disconnecting from GeoClue...');
         if (this.#geoclueConnection) {
             this.#geoclue.disconnect(this.#geoclueConnection);
             this.#geoclueConnection = null;
         }
-        console.debug('Disconnected from GeoClue.');
+        debug.message('Disconnected from GeoClue.');
     }
 
 
     #onGeoclueReady(_, result) {
         this.#geoclue = Geoclue.Simple.new_finish(result);
         this.#geoclueConnection = this.#geoclue.connect('notify::location', this.#onLocationUpdated.bind(this));
-        console.debug('Connected to GeoClue.');
+        debug.message('Connected to GeoClue.');
         this.#onLocationUpdated();
     }
 
     #onLocationUpdated(_geoclue, _location) {
-        console.debug('Location has changed.');
+        debug.message('Location has changed.');
         this.#updateLocation();
         this.#updateSuntimes();
     }
@@ -106,13 +107,13 @@ var TimerLocation = class {
 
     #updateLocation() {
         if (this.#geoclue) {
-            console.debug('Updating location...');
+            debug.message('Updating location...');
             const { latitude, longitude } = this.#geoclue.get_location();
             this.location = new Map([
                 ['latitude', latitude],
                 ['longitude', longitude],
             ]);
-            console.debug(`Current location: (${latitude};${longitude})`);
+            debug.message(`Current location: (${latitude};${longitude})`);
         }
     }
 
@@ -120,7 +121,7 @@ var TimerLocation = class {
         if (!this.location)
             return;
 
-        console.debug('Updating sun times...');
+        debug.message('Updating sun times...');
 
         Math.rad = degrees => degrees * Math.PI / 180;
         Math.deg = radians => radians * 180 / Math.PI;
@@ -162,11 +163,11 @@ var TimerLocation = class {
 
         this.#suntimes.set('sunrise', sunrise);
         this.#suntimes.set('sunset', sunset);
-        console.debug(`New sun times: (sunrise: ${sunrise}; sunset: ${sunset})`);
+        debug.message(`New sun times: (sunrise: ${sunrise}; sunset: ${sunset})`);
     }
 
     #regularlyUpdateSuntimes() {
-        console.debug('Regularly updating sun times...');
+        debug.message('Regularly updating sun times...');
         this.#regularlyUpdateSuntimesTimer = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 3600, () => {
             this.#updateSuntimes();
             return GLib.SOURCE_CONTINUE;
@@ -176,7 +177,7 @@ var TimerLocation = class {
     #stopRegularlyUpdatingSuntimes() {
         GLib.Source.remove(this.#regularlyUpdateSuntimesTimer);
         this.#regularlyUpdateSuntimesTimer = null;
-        console.debug('Stopped regularly updating sun times.');
+        debug.message('Stopped regularly updating sun times.');
     }
 
     #isDaytime() {
@@ -186,7 +187,7 @@ var TimerLocation = class {
     }
 
     #watchForTimeChange() {
-        console.debug('Watching for time change...');
+        debug.message('Watching for time change...');
         this.#timeChangeTimer = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 1, () => {
             if (this.#previouslyDaytime !== this.#isDaytime()) {
                 this.#previouslyDaytime = this.#isDaytime();
@@ -198,7 +199,7 @@ var TimerLocation = class {
 
     #stopWatchingForTimeChange() {
         GLib.Source.remove(this.#timeChangeTimer);
-        console.debug('Stopped watching for time change.');
+        debug.message('Stopped watching for time change.');
     }
 };
 Signals.addSignalMethods(TimerLocation.prototype);
diff --git a/src/modules/TimerNightlight.js b/src/modules/TimerNightlight.js
index af193b1..0fbfcc2 100644
--- a/src/modules/TimerNightlight.js
+++ b/src/modules/TimerNightlight.js
@@ -7,6 +7,7 @@ const Signals = imports.signals;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Time } = Me.imports.enums.Time;
@@ -41,23 +42,23 @@ var TimerNightlight = class {
     }
 
     async enable() {
-        console.debug('Enabling Night Light Timer...');
+        debug.message('Enabling Night Light Timer...');
         this.#cancellable = new Gio.Cancellable();
         this.#colorDbusProxy = await this.#createColorDbusProxy();
         this.#connectSettings();
         this.#listenToNightlightState();
         this.emit('time-changed', this.time);
-        console.debug('Night Light Timer enabled.');
+        debug.message('Night Light Timer enabled.');
     }
 
     disable() {
-        console.debug('Disabling Night Light Timer...');
+        debug.message('Disabling Night Light Timer...');
         this.#stopListeningToNightlightState();
         this.#disconnectSettings();
         this.#colorDbusProxy = null;
         this.#cancellable.cancel();
         this.#cancellable = null;
-        console.debug('Night Light Timer disabled.');
+        debug.message('Night Light Timer disabled.');
     }
 
 
@@ -67,7 +68,7 @@ var TimerNightlight = class {
 
 
     #createColorDbusProxy() {
-        console.debug('Creating the Color DBus proxy...');
+        debug.message('Creating the Color DBus proxy...');
         const ColorProxy = Gio.DBusProxy.makeProxyWrapper(COLOR_INTERFACE);
         return new Promise((resolve, reject) => {
             ColorProxy(
@@ -76,7 +77,7 @@ var TimerNightlight = class {
                 '/org/gnome/SettingsDaemon/Color',
                 (proxy, error) => {
                     if (error === null) {
-                        console.debug('Created the Color DBus proxy.');
+                        debug.message('Created the Color DBus proxy.');
                         resolve(proxy);
                     } else {
                         reject(error);
@@ -89,7 +90,7 @@ var TimerNightlight = class {
     }
 
     #connectSettings() {
-        console.debug('Connecting Night Light Timer to settings...');
+        debug.message('Connecting Night Light Timer to settings...');
         this.#settingsConnections.push({
             settings: this.#settings,
             id: this.#settings.connect('changed::nightlight-follow-disable', this.#onNightlightFollowDisableChanged.bind(this)),
@@ -97,13 +98,13 @@ var TimerNightlight = class {
     }
 
     #disconnectSettings() {
-        console.debug('Disconnecting Night Light Timer from settings...');
+        debug.message('Disconnecting Night Light Timer from settings...');
         this.#settingsConnections.forEach(connection => connection.settings.disconnect(connection.id));
         this.#settingsConnections = [];
     }
 
     #listenToNightlightState() {
-        console.debug('Listening to Night Light state...');
+        debug.message('Listening to Night Light state...');
         this.#nightlightStateConnection = this.#colorDbusProxy.connect(
             'g-properties-changed',
             this.#onNightlightStateChanged.bind(this)
@@ -115,7 +116,7 @@ var TimerNightlight = class {
             this.#colorDbusProxy.disconnect(this.#nightlightStateConnection);
             this.#nightlightStateConnection = null;
         }
-        console.debug('Stopped listening to Night Light state.');
+        debug.message('Stopped listening to Night Light state.');
     }
 
 
@@ -126,7 +127,7 @@ var TimerNightlight = class {
     #onNightlightStateChanged(_sender, _dbusProperties) {
         const newState = this.#isNightlightActive();
         if (newState !== this.#previousNightlightState) {
-            console.debug(`Night Light has become ${newState ? '' : 'in'}active.`);
+            debug.message(`Night Light has become ${newState ? '' : 'in'}active.`);
             this.#previousNightlightState = newState;
             this.emit('time-changed', newState ? Time.NIGHT : Time.DAY);
         }
diff --git a/src/modules/TimerOndemand.js b/src/modules/TimerOndemand.js
index d08a907..539daf7 100644
--- a/src/modules/TimerOndemand.js
+++ b/src/modules/TimerOndemand.js
@@ -13,6 +13,7 @@ const { PopupMenuItem, PopupSubMenuMenuItem } = imports.ui.popupMenu;
 const Me = extensionUtils.getCurrentExtension();
 const _ = extensionUtils.gettext;
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Time } = Me.imports.enums.Time;
@@ -38,22 +39,22 @@ var TimerOndemand = class {
     }
 
     enable() {
-        console.debug('Enabling On-demand Timer...');
+        debug.message('Enabling On-demand Timer...');
         this.#connectSettings();
         this.#addKeybinding();
         this.#addButton();
         this.#connectTimer();
         this.emit('time-changed', this.time);
-        console.debug('On-demand Timer enabled.');
+        debug.message('On-demand Timer enabled.');
     }
 
     disable() {
-        console.debug('Disabling On-demand Timer...');
+        debug.message('Disabling On-demand Timer...');
         this.#disconnectTimer();
         this.#removeKeybinding();
         this.#removeButton();
         this.#disconnectSettings();
-        console.debug('On-demand Timer disabled.');
+        debug.message('On-demand Timer disabled.');
     }
 
 
@@ -63,7 +64,7 @@ var TimerOndemand = class {
 
 
     #connectSettings() {
-        console.debug('Connecting On-demand Timer to settings...');
+        debug.message('Connecting On-demand Timer to settings...');
         this.#settingsConnections.push({
             settings: this.#settings,
             id: this.#settings.connect('changed::ondemand-time', this.#onOndemandTimeChanged.bind(this)),
@@ -79,13 +80,13 @@ var TimerOndemand = class {
     }
 
     #disconnectSettings() {
-        console.debug('Disconnecting On-demand Timer from settings...');
+        debug.message('Disconnecting On-demand Timer from settings...');
         this.#settingsConnections.forEach(connection => connection.settings.disconnect(connection.id));
         this.#settingsConnections = [];
     }
 
     #connectTimer() {
-        console.debug('Connecting On-demand Timer to Timer...');
+        debug.message('Connecting On-demand Timer to Timer...');
         this.#timerConnection = this.#timer.connect('time-changed', this.#onTimeChanged.bind(this));
     }
 
@@ -94,7 +95,7 @@ var TimerOndemand = class {
             this.#timer.disconnect(this.#timerConnection);
             this.#timerConnection = null;
         }
-        console.debug('Disconnected On-demand Timer from Timer.');
+        debug.message('Disconnected On-demand Timer from Timer.');
     }
 
 
@@ -122,7 +123,7 @@ var TimerOndemand = class {
         this.#previousKeybinding = this.#settings.get_strv('nightthemeswitcher-ondemand-keybinding')[0];
         if (!this.#settings.get_strv('nightthemeswitcher-ondemand-keybinding')[0])
             return;
-        console.debug('Adding On-demand Timer keybinding...');
+        debug.message('Adding On-demand Timer keybinding...');
         main.wm.addKeybinding(
             'nightthemeswitcher-ondemand-keybinding',
             this.#settings,
@@ -130,14 +131,14 @@ var TimerOndemand = class {
             Shell.ActionMode.NORMAL | Shell.ActionMode.OVERVIEW,
             this.#toggleTime.bind(this)
         );
-        console.debug('Added On-demand Timer keybinding.');
+        debug.message('Added On-demand Timer keybinding.');
     }
 
     #removeKeybinding() {
         if (this.#previousKeybinding) {
-            console.debug('Removing On-demand Timer keybinding...');
+            debug.message('Removing On-demand Timer keybinding...');
             main.wm.removeKeybinding('nightthemeswitcher-ondemand-keybinding');
-            console.debug('Removed On-demand Timer keybinding.');
+            debug.message('Removed On-demand Timer keybinding.');
         }
     }
 
@@ -153,35 +154,35 @@ var TimerOndemand = class {
 
     #removeButton() {
         if (this.#button) {
-            console.debug('Removing On-demand Timer button...');
+            debug.message('Removing On-demand Timer button...');
             this.#button.destroy();
             this.#button = null;
-            console.debug('Removed On-demand Timer button.');
+            debug.message('Removed On-demand Timer button.');
         }
     }
 
     #updateButton() {
         if (this.#button) {
-            console.debug('Updating On-demand Timer button state...');
+            debug.message('Updating On-demand Timer button state...');
             this.#button.update();
-            console.debug('Updated On-demand Timer button state.');
+            debug.message('Updated On-demand Timer button state.');
         }
     }
 
     #addButtonToPanel() {
-        console.debug('Adding On-demand Timer button to the panel...');
+        debug.message('Adding On-demand Timer button to the panel...');
         this.#button = new NtsPanelMenuButton({ timer: this.#timer, toggleCallback: this.#toggleTime.bind(this) });
         main.panel.addToStatusArea('NightThemeSwitcherButton', this.#button);
-        console.debug('Added On-demand Timer button to the panel.');
+        debug.message('Added On-demand Timer button to the panel.');
     }
 
     #addButtonToMenu() {
-        console.debug('Adding On-demand Timer button to the menu...');
+        debug.message('Adding On-demand Timer button to the menu...');
         const aggregateMenu = main.panel.statusArea.aggregateMenu;
         const position = utils.findShellAggregateMenuItemPosition(aggregateMenu._system.menu) - 1;
         this.#button = new NtsPopupSubMenuMenuItem({ timer: this.#timer, toggleCallback: this.#toggleTime.bind(this) });
         aggregateMenu.menu.addMenuItem(this.#button, position);
-        console.debug('Added On-demand Timer button to the menu.');
+        debug.message('Added On-demand Timer button to the menu.');
     }
 
     #toggleTime() {
diff --git a/src/modules/TimerSchedule.js b/src/modules/TimerSchedule.js
index eb12f2b..69b5758 100644
--- a/src/modules/TimerSchedule.js
+++ b/src/modules/TimerSchedule.js
@@ -7,6 +7,7 @@ const Signals = imports.signals;
 
 const Me = extensionUtils.getCurrentExtension();
 
+const debug = Me.imports.debug;
 const utils = Me.imports.utils;
 
 const { Time } = Me.imports.enums.Time;
@@ -31,16 +32,16 @@ var TimerSchedule = class {
     }
 
     enable() {
-        console.debug('Enabling Schedule Timer...');
+        debug.message('Enabling Schedule Timer...');
         this.#watchForTimeChange();
         this.emit('time-changed', this.time);
-        console.debug('Schedule Timer enabled.');
+        debug.message('Schedule Timer enabled.');
     }
 
     disable() {
-        console.debug('Disabling Schedule Timer...');
+        debug.message('Disabling Schedule Timer...');
         this.#stopWatchingForTimeChange();
-        console.debug('Schedule Timer disabled.');
+        debug.message('Schedule Timer disabled.');
     }
 
 
@@ -56,7 +57,7 @@ var TimerSchedule = class {
     }
 
     #watchForTimeChange() {
-        console.debug('Watching for time change...');
+        debug.message('Watching for time change...');
         this.#timeChangeTimer = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 1, () => {
             if (this.#previouslyDaytime !== this.#isDaytime()) {
                 this.#previouslyDaytime = this.#isDaytime();
@@ -68,7 +69,7 @@ var TimerSchedule = class {
 
     #stopWatchingForTimeChange() {
         GLib.Source.remove(this.#timeChangeTimer);
-        console.debug('Stopped watching for time change.');
+        debug.message('Stopped watching for time change.');
     }
 };
 Signals.addSignalMethods(TimerSchedule.prototype);