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diff --git a/apply.png b/apply.png
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diff --git a/delete.png b/delete.png
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diff --git a/edit.png b/edit.png
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diff --git a/icon.png b/icon.png
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diff --git a/main.py b/main.py
new file mode 100644
index 0000000..2ee5558
--- /dev/null
+++ b/main.py
@@ -0,0 +1,12 @@
+# this will either work flawlessly, or fail to do anything...
+# if you're trying to understand this, sorry for the spaghetti code
+
+from ui import Ui
+from scheduler import Scheduler
+import sys
+
+sc = Scheduler()
+ui = Ui(sc.menu_event, sc.update)
+sc.set_ui_class(ui)
+
+ui.run()
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..9f3888e
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+PySide6
+playsound
\ No newline at end of file
diff --git a/save.png b/save.png
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diff --git a/scheduler.py b/scheduler.py
new file mode 100644
index 0000000..b2ec179
--- /dev/null
+++ b/scheduler.py
@@ -0,0 +1,135 @@
+import time, json, dataclasses
+from enum import Enum
+from playsound import playsound
+from sound import play
+
+class SoundType(Enum):
+	FIRST_BELL = 1
+	SECOND_BELL = 2
+	BREAK = 3
+	CUSTOM = 4
+
+BELL_NAMES = {
+	SoundType.FIRST_BELL:    "1-й дзвоник",
+	SoundType.SECOND_BELL:   "2-й дзвоник",
+	SoundType.BREAK:         "Перерва"
+}
+
+@dataclasses.dataclass
+class Bell:
+	sound: SoundType
+	hour: int
+	minute: int
+	played: bool = False
+	# only used when sound = SoundType.CUSTOM
+	custom_file: str = ""
+	custom_name: str = ""
+
+@dataclasses.dataclass
+class CustomSound:
+	name: str
+	times: list[list[int]]
+	sound_file: str
+
+@dataclasses.dataclass
+class Config:
+	# yes, this is permanently "borrowed" from the internet
+	# thx to https://stackoverflow.com/questions/53632152/why-cant-dataclasses-have-mutable-defaults-in-their-class-attributes-declaratio
+	lessons_start:                  list[int]         = dataclasses.field(default_factory=lambda: [8, 0])
+	lesson_length:                  int               = dataclasses.field(default_factory=lambda: 40)
+	break_length:                   int               = dataclasses.field(default_factory=lambda: 5)
+	first_bell:                     int               = dataclasses.field(default_factory=lambda: 1)
+	num_lessons:                    int               = dataclasses.field(default_factory=lambda: 12)
+	workdays:                       list[bool]        = dataclasses.field(default_factory=lambda: [True, True, True, True, True, True, False])
+	sound_files:                    list[str]         = dataclasses.field(default_factory=lambda: ["", "", ""])
+	first_bell_before_first_lesson: bool              = dataclasses.field(default_factory=lambda: True)
+	custom_sounds:                  list[CustomSound] = dataclasses.field(default_factory=lambda: [])
+
+class Scheduler:
+	def __init__(self) -> None:
+		self.bells: list[Bell] = []
+		self.bells_enabled: bool = True
+		self.load_config()
+
+	def set_ui_class(self, ui_class) -> None:
+		self.ui = ui_class
+		self.generate_bells()
+		self.ui.set_settings(self.config)
+
+	def apply_config(self) -> None:
+		self.ui.get_settings(self.config, CustomSound)
+		self.generate_bells()
+
+	def generate_bells(self) -> None:
+		self.bells = []
+		if not self.config.workdays[time.localtime().tm_wday]:
+			self.ui.set_schedule(self.get_bells_list())
+			return
+
+		day_minute: int = self.config.lessons_start[0] * 60 + self.config.lessons_start[1] - self.config.first_bell
+		for lesson_number in range(self.config.num_lessons):
+			if lesson_number != 0 or self.config.first_bell_before_first_lesson:
+				self.bells.append(Bell(SoundType.FIRST_BELL, day_minute // 60, day_minute % 60))
+			day_minute += self.config.first_bell
+			self.bells.append(Bell(SoundType.SECOND_BELL, day_minute // 60, day_minute % 60))
+			day_minute += self.config.lesson_length
+			self.bells.append(Bell(SoundType.BREAK, day_minute // 60, day_minute % 60))
+			day_minute += self.config.break_length - self.config.first_bell
+
+		for sound in self.config.custom_sounds:
+			for sound_time in sound.times:
+				self.bells.append(Bell(SoundType.CUSTOM, *sound_time, custom_file=sound.sound_file, custom_name=sound.name))
+
+		# so that the first bell before the first lesson can't roll time into the negatives
+		self.bells = [bell for bell in self.bells if bell.hour <= 23]
+		self.bells.sort(key=lambda sound: sound.hour * 60 + sound.minute)
+
+		self.ui.set_schedule(self.get_bells_list())
+
+	def get_bells_list(self) -> list[str]:
+		bells_list: list[str] = []
+		for bell in self.bells:
+			if bell.sound != SoundType.CUSTOM: bell_name: str = BELL_NAMES[bell.sound]
+			else:                              bell_name: str = '"' + bell.custom_name + '"'
+			bells_list.append(f"{bell.hour:02}:{bell.minute:02} - {bell_name}")
+		return bells_list
+
+	def menu_event(self, button) -> None:
+		match button:
+			case 0: self.apply_config()
+			case 1: self.save_config()
+			case 2: self.bells_enabled = True
+			case 3: self.bells_enabled = False
+
+	def update(self) -> None:
+		if not self.bells_enabled:
+			return
+		t = time.localtime()
+		for bell_n, bell in enumerate(self.bells):
+			if (not bell.played) and (bell.hour == t.tm_hour) and (bell.minute == t.tm_min):
+				bell.played = True
+				self.ui.select_bell(bell_n)
+				match bell.sound:
+					case SoundType.FIRST_BELL:    play(self.config.sound_files[0])
+					case SoundType.SECOND_BELL:   play(self.config.sound_files[1])
+					case SoundType.BREAK:         play(self.config.sound_files[2])
+					case SoundType.CUSTOM:        play(bell.custom_file)
+				break
+
+	def load_config(self) -> None:
+		try:
+			with open("config.json", "r") as fp:
+				self.config = Config(**json.load(fp))
+				for i in range(len(self.config.custom_sounds)):
+					self.config.custom_sounds[i] = CustomSound(**self.config.custom_sounds[i])
+		except:
+			# if something goes wrong, load the default values
+			# nothing should go wrong with the config file, if the user doesn't edit
+			# it manually. if that's the case - it's their fault, not mine :P
+			self.config = Config()
+
+	def save_config(self) -> None:
+		temp_config = Config()
+		self.ui.get_settings(temp_config, CustomSound)
+		with open("config.json", "w") as fp:
+			json.dump(dataclasses.asdict(temp_config), fp)
diff --git a/sound.py b/sound.py
new file mode 100644
index 0000000..e920217
--- /dev/null
+++ b/sound.py
@@ -0,0 +1,7 @@
+import playsound
+
+def play(file_name):
+	try:
+		playsound.playsound(file_name, block=False)
+	except playsound.PlaysoundException:
+		pass
diff --git a/start.png b/start.png
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diff --git a/stop.png b/stop.png
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diff --git a/ui.py b/ui.py
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index 0000000..18be382
--- /dev/null
+++ b/ui.py
@@ -0,0 +1,37 @@
+from PySide6 import QtWidgets, QtGui, QtCore
+from windows import MainWindow, MenuActions, ToolBar, MenuBar, Tray, SoundEditorWindow
+
+class Ui:
+	def __init__(self, menu_callback, periodic_task):
+		self.app = QtWidgets.QApplication([])
+		self.app.setQuitOnLastWindowClosed(False)
+		self.sound_editor_window = SoundEditorWindow()
+		self.main_window = MainWindow(self.sound_editor_window.show)
+		self.menu_actions = MenuActions(self.main_window, menu_callback)
+		self.menu_bar = MenuBar(self.main_window, self.menu_actions)
+		self.toolbar = ToolBar(self.main_window, self.menu_actions)
+		self.tray = Tray(self.main_window)
+
+		self.sound_editor_window.set_add_sound_callback(self.main_window.additional_sounds_box.add_sound)
+
+		# timer for starting bells
+		self.timer = QtCore.QTimer()
+		self.timer.timeout.connect(periodic_task)
+		self.timer.start(1000)
+
+	def run(self):
+		self.main_window.show()
+		self.tray.setVisible(True)
+		self.app.exec()
+
+	def get_settings(self, *args, **kwargs):
+		return self.main_window.get_settings(*args, **kwargs)
+
+	def set_settings(self, *args, **kwargs):
+		self.main_window.set_settings(*args, **kwargs)
+
+	def set_schedule(self, *args, **kwargs):
+		self.main_window.set_schedule(*args, **kwargs)
+
+	def select_bell(self, *args, **kwargs):
+		self.main_window.select_bell(*args, **kwargs)
diff --git a/widgets.py b/widgets.py
new file mode 100644
index 0000000..8d475ce
--- /dev/null
+++ b/widgets.py
@@ -0,0 +1,277 @@
+from PySide6 import QtWidgets, QtGui, QtCore
+import time
+
+DAYS_OF_WEEK = "Понеділок Вівторок Середа Четвер П'ятниця Субота Неділя".split()
+
+class BasicBox(QtWidgets.QScrollArea):
+	def __init__(self, title):
+		super().__init__()
+		self.widget = QtWidgets.QWidget()
+		self.setWidgetResizable(True)
+		self.setWidget(self.widget)
+		self.layout = QtWidgets.QVBoxLayout(self.widget)
+		font = QtGui.QFont()
+		font.setPointSize(16)
+		title = QtWidgets.QLabel(title)
+		title.setFont(font)
+		self.layout.addWidget(title)
+
+class WidgetArray(QtWidgets.QWidget):
+	def __init__(self, deleted_item_callback, edit_button=False):
+		super().__init__()
+		self.deleted_item_callback = deleted_item_callback
+		self.main_layout = QtWidgets.QVBoxLayout(self)
+
+		self.control_widget = QtWidgets.QWidget()
+		self.control_layout = QtWidgets.QHBoxLayout(self.control_widget)
+		self.add_button = QtWidgets.QPushButton()
+		self.add_button.setIcon(QtGui.QIcon("add.png"))
+		self.add_button.setFixedSize(22, 22)
+		self.delete_button = QtWidgets.QPushButton()
+		self.delete_button.setIcon(QtGui.QIcon("delete.png"))
+		self.delete_button.setFixedSize(22, 22)
+		self.delete_button.clicked.connect(self.delete_items)
+		self.control_layout.addWidget(self.add_button)
+		self.control_layout.addWidget(self.delete_button)
+		if edit_button:
+			self.edit_button = QtWidgets.QPushButton()
+			self.edit_button.setIcon(QtGui.QIcon("edit.png"))
+			self.edit_button.setFixedSize(22, 22)
+			self.control_layout.addWidget(self.edit_button)
+		self.control_layout.addStretch(1)
+
+		self.widget_list = QtWidgets.QListWidget()
+
+		self.main_layout.addWidget(self.control_widget)
+		self.main_layout.addWidget(self.widget_list)
+
+	def add_item(self, widget):
+		item = QtWidgets.QListWidgetItem()
+		self.widget_list.addItem(item)
+		self.widget_list.setItemWidget(item, widget)
+
+	def get_items(self):
+		for i in range(self.widget_list.count()):
+			yield self.widget_list.itemWidget(self.widget_list.item(i))
+
+	def delete_items(self):
+		selected_items = self.widget_list.selectedItems()
+		if not selected_items: return
+		# if multiple items are selected, and the parent of this widget list keeps track of the widgets somehow,
+		# this makes so they are deleted in the correct order
+		selected_items.sort(reverse=True, key=lambda item: self.widget_list.row(item))
+		for item in selected_items:
+			row = self.widget_list.row(item)
+			self.widget_list.takeItem(row)
+			self.deleted_item_callback(row)
+
+class BellStatusBox(BasicBox):
+	def __init__(self):
+		super().__init__("Розклад дзвінків")
+		self.bells_list = QtWidgets.QListWidget()
+		self.layout.addWidget(self.bells_list)
+
+class ScheduleBox(BasicBox):
+	def __init__(self):
+		super().__init__("Налаштування розкладу")
+		self.grid_widget = QtWidgets.QWidget()
+		self.grid_layout = QtWidgets.QGridLayout(self.grid_widget)
+		self.grid_widget.setLayout(self.grid_layout)
+
+		self.first_lesson_input  = QtWidgets.QTimeEdit()
+		self.lesson_length_input = QtWidgets.QSpinBox()
+		self.break_length_input  = QtWidgets.QSpinBox()
+		self.first_bell_input    = QtWidgets.QSpinBox()
+		self.num_lessons_input   = QtWidgets.QSpinBox()
+
+		self.lesson_length_input.setRange(20, 90)
+		self.break_length_input.setRange(2, 59)
+		self.first_bell_input.setRange(1, 4)
+		self.num_lessons_input.setRange(1, 20)
+
+		self.break_length_input.valueChanged.connect(self.update_limits)
+
+		self.grid_layout.addWidget(QtWidgets.QLabel("Перший урок о"),      0, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Тривалість уроку:"),  1, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Перерва"),            2, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Перший дзвоник за"),  3, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Кількість уроків:"),  4, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("хвилин"),             1, 2)
+		self.grid_layout.addWidget(QtWidgets.QLabel("хвилин"),             2, 2)
+		self.grid_layout.addWidget(QtWidgets.QLabel("хвилин до уроку"),    3, 2)
+		self.grid_layout.addWidget(self.first_lesson_input,      0, 1)
+		self.grid_layout.addWidget(self.lesson_length_input,     1, 1)
+		self.grid_layout.addWidget(self.break_length_input,      2, 1)
+		self.grid_layout.addWidget(self.first_bell_input,        3, 1)
+		self.grid_layout.addWidget(self.num_lessons_input,       4, 1)
+
+		self.first_bell_before_first_lesson_checkbox = QtWidgets.QCheckBox("Перший дзвоник перед першим уроком")
+
+		self.layout.addWidget(self.grid_widget)
+		self.layout.addWidget(self.first_bell_before_first_lesson_checkbox)
+		self.layout.addStretch(1)
+
+	def update_limits(self, value):
+		self.first_bell_input.setRange(1, value - 1)
+
+class DaysSelectBox(BasicBox):
+	def __init__(self):
+		super().__init__("Робочі дні")
+		self.days_checkboxes = []
+		for day_name in DAYS_OF_WEEK:
+			self.days_checkboxes.append(QtWidgets.QCheckBox(day_name))
+			self.layout.addWidget(self.days_checkboxes[-1])
+		self.layout.addStretch(1)
+
+class AdditionalSoundsBox(BasicBox):
+	def __init__(self, show_sound_diag):
+		super().__init__("Додаткові звуки")
+		self.show_sound_diag = show_sound_diag
+		self.sound_list = WidgetArray(self.deleted_item, True)
+		self.sound_list.add_button.clicked.connect(lambda: self.show_sound_diag())
+		self.sound_list.edit_button.clicked.connect(self.edit_sound)
+		self.layout.addWidget(self.sound_list)
+		self.sounds = []
+		self.editing_sound = 0
+
+	def add_sound(self, name, times, sound_file, edit_n=None):
+		if edit_n is None:
+			self.sounds.append([name, times, sound_file])
+			self.sound_list.add_item(QtWidgets.QLabel(name))
+		else:
+			self.sounds[edit_n] = [name, times, sound_file]
+			self.sound_list.widget_list.itemWidget(self.sound_list.widget_list.item(edit_n)).setText(name)
+
+	def deleted_item(self, n):
+		del self.sounds[n]
+
+	def edit_sound(self):
+		edit_n = self.sound_list.widget_list.currentRow()
+		sound = self.sounds[edit_n]
+		self.show_sound_diag(edit_n, *sound)
+
+class StatusBox(BasicBox):
+	def __init__(self):
+		super().__init__("Стан")
+		self.grid_widget = QtWidgets.QWidget()
+		self.grid_layout = QtWidgets.QGridLayout(self.grid_widget)
+		self.grid_widget.setLayout(self.grid_layout)
+
+		self.day_of_week_widget = QtWidgets.QLabel()
+		self.current_time_widget = QtWidgets.QLabel()
+		self.uptime_widget = QtWidgets.QLabel()
+		self.grid_layout.addWidget(QtWidgets.QLabel("День тижня:"),    0, 0)
+		self.grid_layout.addWidget(self.day_of_week_widget,            0, 1)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Поточний час:"),  1, 0)
+		self.grid_layout.addWidget(self.current_time_widget,           1, 1)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Зі запуску:"),    2, 0)
+		self.grid_layout.addWidget(self.uptime_widget,                 2, 1)
+
+		self.layout.addWidget(self.grid_widget)
+		self.layout.addStretch(1)
+
+		self.uptime_timer = QtCore.QElapsedTimer()
+		self.timer = QtCore.QTimer()
+		self.timer.timeout.connect(self.update)
+		self.uptime_timer.start()
+		self.timer.start(1000)
+		self.update()
+
+	def update(self):
+		t = time.localtime()
+		self.day_of_week_widget.setText(DAYS_OF_WEEK[t.tm_wday])
+		self.current_time_widget.setText(f"{t.tm_hour:02}:{t.tm_min:02}:{t.tm_sec:02}")
+		seconds = self.uptime_timer.elapsed() / 1000
+		minutes = seconds / 60
+		hours = minutes / 60
+		days = hours / 24
+		self.uptime_widget.setText(f"{int(days)} днів, {int(hours % 24):02}:{int(minutes % 60):02}:{int(seconds % 60):02}")
+
+class SoundFilesBox(BasicBox):
+	def __init__(self):
+		super().__init__("Звуки")
+		self.grid_widget = QtWidgets.QWidget()
+		self.grid_layout = QtWidgets.QGridLayout(self.grid_widget)
+		self.grid_widget.setLayout(self.grid_layout)
+
+		self.first_bell_file_text    = QtWidgets.QLabel()
+		self.second_bell_file_text   = QtWidgets.QLabel()
+		self.break_file_text         = QtWidgets.QLabel()
+		self.first_bell_file_button  = QtWidgets.QPushButton("Огляд")
+		self.second_bell_file_button = QtWidgets.QPushButton("Огляд")
+		self.break_file_button       = QtWidgets.QPushButton("Огляд")
+
+		self.first_bell_file_button .clicked.connect(lambda: self.file_select_diag(0))
+		self.second_bell_file_button.clicked.connect(lambda: self.file_select_diag(1))
+		self.break_file_button      .clicked.connect(lambda: self.file_select_diag(2))
+
+		self.grid_layout.addWidget(QtWidgets.QLabel("Перший дзвоник:"), 0, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Другий дзвоник:"), 1, 0)
+		self.grid_layout.addWidget(QtWidgets.QLabel("Перерва:"),        2, 0)
+		self.grid_layout.addWidget(self.first_bell_file_text,           0, 1)
+		self.grid_layout.addWidget(self.second_bell_file_text,          1, 1)
+		self.grid_layout.addWidget(self.break_file_text,                2, 1)
+		self.grid_layout.addWidget(self.first_bell_file_button,         0, 2)
+		self.grid_layout.addWidget(self.second_bell_file_button,        1, 2)
+		self.grid_layout.addWidget(self.break_file_button,              2, 2)
+
+		self.layout.addWidget(self.grid_widget)
+		self.layout.addStretch(1)
+
+	def file_select_diag(self, sound_type):
+		file_name, _ = QtWidgets.QFileDialog.getOpenFileName(self.grid_widget, "SBC - Відкрити файл", "", "Підтримувані файли (*.wav *.mp3 *.flac)")
+		if file_name is None:
+			return
+		match sound_type:
+			case 0: self.first_bell_file_text .setText(file_name)
+			case 1: self.second_bell_file_text.setText(file_name)
+			case 2: self.break_file_text      .setText(file_name)
+
+class SoundEditorBox(BasicBox):
+	def __init__(self, add_sound_callback, quit_callback):
+		super().__init__("Редактор звуку")
+		self.add_sound_callback = add_sound_callback
+		self.quit_callback = quit_callback
+		self.time_select_widget = WidgetArray(lambda _: None)
+		self.sound_name_input = QtWidgets.QLineEdit()
+		self.save_button = QtWidgets.QPushButton("Зберегти")
+		self.time_select_widget.add_button.clicked.connect(lambda: self.time_select_widget.add_item(QtWidgets.QTimeEdit()))
+		self.save_button.clicked.connect(self.save)
+
+		self.file_select_widget = QtWidgets.QWidget()
+		self.file_select_layout = QtWidgets.QHBoxLayout(self.file_select_widget)
+		self.file_name_select_text = QtWidgets.QLabel()
+		self.file_name_select_button = QtWidgets.QPushButton("Огляд")
+		self.file_name_select_button.clicked.connect(self.file_select_diag)
+		self.file_select_layout.addWidget(self.file_name_select_text)
+		self.file_select_layout.addWidget(self.file_name_select_button)
+		self.file_select_layout.addStretch(1)
+
+		self.layout.addWidget(self.sound_name_input)
+		self.layout.addWidget(self.time_select_widget)
+		self.layout.addWidget(self.file_select_widget)
+		self.layout.addStretch(1)
+		self.layout.addWidget(self.save_button)
+		self.edit_n = None
+
+	def file_select_diag(self):
+		file_name, _ = QtWidgets.QFileDialog.getOpenFileName(self.file_select_widget, "SBC - Відкрити файл", "", "Підтримувані файли (*.wav *.mp3 *.flac)")
+		if file_name is None:
+			return
+		self.file_name_select_text.setText(file_name)
+
+	def save(self):
+		self.add_sound_callback(
+			self.sound_name_input.text(),
+			[[item.time().hour(), item.time().minute()] for item in self.time_select_widget.get_items()],
+			self.file_name_select_text.text(),
+			self.edit_n
+		)
+		self.clear_edit()
+		self.quit_callback()
+
+	def clear_edit(self):
+		self.sound_name_input.setText("")
+		for i in range(self.time_select_widget.widget_list.count()):
+			self.time_select_widget.widget_list.takeItem(0)
+		self.edit_n = None
diff --git a/windows.py b/windows.py
new file mode 100644
index 0000000..010341d
--- /dev/null
+++ b/windows.py
@@ -0,0 +1,176 @@
+from PySide6 import QtWidgets, QtGui, QtCore
+from widgets import BellStatusBox, ScheduleBox, DaysSelectBox, AdditionalSoundsBox, StatusBox, SoundFilesBox, SoundEditorBox
+import sys
+
+VERSION = "0.2.0"
+
+class MainWindow(QtWidgets.QMainWindow):
+	def __init__(self, show_sound_diag):
+		super().__init__()
+		self.setWindowTitle("SBC - Головне вікно")
+		self.setWindowIcon(QtGui.QIcon("icon.png"))
+		self.setMinimumSize(800, 768)
+		self.main_widget = QtWidgets.QWidget()
+		self.main_layout = QtWidgets.QGridLayout(self.main_widget)
+
+		self.bell_status_box = BellStatusBox()
+		self.schedule_box = ScheduleBox()
+		self.days_select_box = DaysSelectBox()
+		self.additional_sounds_box = AdditionalSoundsBox(show_sound_diag)
+		self.status_box = StatusBox()
+		self.sound_files_box = SoundFilesBox()
+
+		self.main_layout.addWidget(self.bell_status_box,       0, 0, 3, 1)
+		self.main_layout.addWidget(self.schedule_box,          0, 1, 1, 1)
+		self.main_layout.addWidget(self.days_select_box,       1, 1, 1, 1)
+		self.main_layout.addWidget(self.additional_sounds_box, 2, 1, 1, 1)
+		self.main_layout.addWidget(self.status_box,            0, 2, 1, 1)
+		self.main_layout.addWidget(self.sound_files_box,       1, 2, 1, 1)
+		self.setCentralWidget(self.main_widget)
+
+	def get_settings(self, config, CustomSound):
+		first_lesson_input = self.schedule_box.first_lesson_input.time()
+
+		config.lessons_start    = [first_lesson_input.hour(), first_lesson_input.minute()]
+		config.lesson_length    = self.schedule_box.lesson_length_input.value()
+		config.break_length     = self.schedule_box.break_length_input .value()
+		config.first_bell       = self.schedule_box.first_bell_input   .value()
+		config.num_lessons      = self.schedule_box.num_lessons_input  .value()
+		config.first_bell_before_first_lesson = self.schedule_box.first_bell_before_first_lesson_checkbox.isChecked()
+		config.workdays = [checkbox.isChecked() for checkbox in self.days_select_box.days_checkboxes]
+		config.sound_files = [
+			self.sound_files_box.first_bell_file_text   .text(),
+			self.sound_files_box.second_bell_file_text  .text(),
+			self.sound_files_box.break_file_text        .text()
+		]
+		config.custom_sounds = [CustomSound(*sound) for sound in self.additional_sounds_box.sounds]
+
+	def set_settings(self, config):
+		self.schedule_box.first_lesson_input .setTime (QtCore.QTime(*config.lessons_start))
+		self.schedule_box.lesson_length_input.setValue(config.lesson_length)
+		self.schedule_box.break_length_input .setValue(config.break_length)
+		self.schedule_box.first_bell_input   .setValue(config.first_bell)
+		self.schedule_box.num_lessons_input  .setValue(config.num_lessons)
+		self.schedule_box.first_bell_before_first_lesson_checkbox.setChecked(config.first_bell_before_first_lesson)
+		for i in range(0, 7): self.days_select_box.days_checkboxes[i].setChecked(config.workdays[i])
+		self.sound_files_box.first_bell_file_text   .setText(config.sound_files[0])
+		self.sound_files_box.second_bell_file_text  .setText(config.sound_files[1])
+		self.sound_files_box.break_file_text        .setText(config.sound_files[2])
+		self.additional_sounds_box.sounds = [[sound.name, sound.times, sound.sound_file] for sound in config.custom_sounds]
+		for sound in config.custom_sounds: self.additional_sounds_box.sound_list.add_item(QtWidgets.QLabel(sound.name))
+
+	def set_schedule(self, bells):
+		self.bell_status_box.bells_list.clear()
+		for bell in bells:
+			self.bell_status_box.bells_list.addItem(bell)
+
+	def select_bell(self, bell_n):
+		self.bell_status_box.bells_list.setCurrentItem(self.bell_status_box.bells_list.item(bell_n))
+
+class MenuActions:
+	def __init__(self, window, callback):
+		self.window = window
+		self.callback = callback
+		self.button_apply = QtGui.QAction(QtGui.QIcon("apply.png"), "Застосувати",           window)
+		self.button_save  = QtGui.QAction(QtGui.QIcon("save.png"),  "Зберегти налаштування", window)
+		self.button_start = QtGui.QAction(QtGui.QIcon("start.png"), "Запустити дзвоники",    window)
+		self.button_stop  = QtGui.QAction(QtGui.QIcon("stop.png"),  "Зупинити все",          window)
+		self.button_about = QtGui.QAction(                          "Про програму",          window)
+
+		self.button_start.setEnabled(False)
+
+		self.button_apply.triggered.connect(lambda: self.handle_button(0))
+		self.button_save .triggered.connect(lambda: self.handle_button(1))
+		self.button_start.triggered.connect(lambda: self.handle_button(2))
+		self.button_stop .triggered.connect(lambda: self.handle_button(3))
+		self.button_about.triggered.connect(lambda: self.handle_button(4))
+
+	def handle_button(self, button):
+		match button:
+			case 0 | 1 | 2 | 3:
+				self.callback(button)
+				match button:
+					case 0: QtWidgets.QMessageBox.information(self.window, "SBC - Інформація", "Налаштування застосовано!")
+					case 1: QtWidgets.QMessageBox.information(self.window, "SBC - Інформація", "Налаштування збережено!")
+					case 2:
+						self.button_start.setEnabled(False)
+						self.button_stop .setEnabled(True) 
+						QtWidgets.QMessageBox.information(self.window, "SBC - Інформація", "Дзвінки запущено. Якщо ви налаштували щось не так, самі винні!")
+					case 3:
+						self.button_start.setEnabled(True)
+						self.button_stop .setEnabled(False)
+						QtWidgets.QMessageBox.information(self.window, "SBC - Інформація", "Дзвінки зупинено. Щось пішло не так, еге ж? Піди і виправи це негайно!")
+			case 4: QtWidgets.QMessageBox.information(self.window, "SBC - Про програму", \
+				f"SBC {VERSION}\nАвтор: 2o\nTelegram: @xfdtw\nDiscord: @2o___\nЯкщо щось не зрозуміло/не працює пишіть туди.")
+
+class ToolBar(QtWidgets.QToolBar):
+	def __init__(self, window, menu_actions):
+		super().__init__("Toolbar")
+		window.addToolBar(self)
+		self.setIconSize(QtCore.QSize(16, 16))
+
+		self.addAction(menu_actions.button_apply)
+		self.addAction(menu_actions.button_save)
+		self.addSeparator()
+		self.addAction(menu_actions.button_start)
+		self.addAction(menu_actions.button_stop)	
+
+class MenuBar(QtWidgets.QMenuBar):
+	def __init__(self, window, menu_actions):
+		super().__init__()
+		window.setMenuBar(self)
+		self.settings_menu = self.addMenu("&Налаштування")
+		self.bells_menu    = self.addMenu("&Дзвінки")
+		self.help_menu     = self.addMenu("Д&опомога")
+
+		self.settings_menu.addAction(menu_actions.button_apply)
+		self.settings_menu.addAction(menu_actions.button_save)
+		self.bells_menu.addAction(menu_actions.button_start)
+		self.bells_menu.addAction(menu_actions.button_stop)
+		self.help_menu.addAction(menu_actions.button_about)
+
+class Tray(QtWidgets.QSystemTrayIcon):
+	def __init__(self, window):
+		super().__init__()
+		self.window = window
+		self.setIcon(QtGui.QIcon("icon.png"))
+		self.setVisible(True)
+
+		self.menu = QtWidgets.QMenu(self.window)
+		open_window = QtGui.QAction("Показати головне вікно", self)
+		close_all = QtGui.QAction("Вийти", self)
+		open_window.triggered.connect(self.window.show)
+		close_all.triggered.connect(self.close_all_diag)
+		self.menu.addAction(open_window)
+		self.menu.addAction(close_all)
+		self.setContextMenu(self.menu)
+
+	def close_all_diag(self):
+		if QtWidgets.QMessageBox.question(self.window, "SBC - Вихід", \
+			"Ви дійсно хочете вийти з програми? Після цього дітки кричатимуть чого в них уроки по 5 годин...", \
+			QtWidgets.QMessageBox.StandardButton.Yes | QtWidgets.QMessageBox.StandardButton.No) == QtWidgets.QMessageBox.StandardButton.Yes:
+			sys.exit()
+
+class SoundEditorWindow(QtWidgets.QMainWindow):
+	def __init__(self):
+		super().__init__()
+		self.setWindowTitle("SBC - Редактор звуків")
+		self.setWindowIcon(QtGui.QIcon("icon.png"))
+		self.setMinimumSize(256, 384)
+
+	def set_add_sound_callback(self, add_sound_callback):
+		self.sound_editor_box = SoundEditorBox(add_sound_callback, self.hide)
+		self.setCentralWidget(self.sound_editor_box)
+
+	def show(self, edit_n=None, name="", times=[], sound_file=""):
+		self.sound_editor_box.edit_n = edit_n
+		self.sound_editor_box.sound_name_input.setText(name)
+		for sound_time in times:
+			self.sound_editor_box.time_select_widget \
+				.add_item(QtWidgets.QTimeEdit(QtCore.QTime(*sound_time)))
+		self.sound_editor_box.file_name_select_text.setText(sound_file)
+		super().show()
+
+	def closeEvent(self, *args, **kwargs):
+		self.sound_editor_box.clear_edit()
+		super().closeEvent(*args, **kwargs)