diff --git a/.gitignore b/.gitignore
index 1e6cd00..62faaac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@
 [Oo]ut/
 [Ll]og/
 [Ll]ogs/
+[Pp]ublish/
 
 # IDE files
 .vs/
diff --git a/dtlauncher.sln b/dtlauncher.sln
index 8e917a0..00f35c3 100644
--- a/dtlauncher.sln
+++ b/dtlauncher.sln
@@ -13,6 +13,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Files", "Solution
 		README.md = README.md
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "launcher-client-avalonia", "launcher-client-avalonia\launcher-client-avalonia.csproj", "{BC1FC2A0-159A-4F17-B076-B39775FB6AAC}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -27,6 +29,10 @@ Global
 		{A1F770F3-F6B1-4854-9BF0-093F85064B88}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A1F770F3-F6B1-4854-9BF0-093F85064B88}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A1F770F3-F6B1-4854-9BF0-093F85064B88}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BC1FC2A0-159A-4F17-B076-B39775FB6AAC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BC1FC2A0-159A-4F17-B076-B39775FB6AAC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BC1FC2A0-159A-4F17-B076-B39775FB6AAC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BC1FC2A0-159A-4F17-B076-B39775FB6AAC}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/launcher-client-avalonia/.run/launcher-client-avalonia-win64.run.xml b/launcher-client-avalonia/.run/launcher-client-avalonia-win64.run.xml
new file mode 100644
index 0000000..ed656ef
--- /dev/null
+++ b/launcher-client-avalonia/.run/launcher-client-avalonia-win64.run.xml
@@ -0,0 +1,6 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="launcher-client-avalonia-win64" type="DotNetFolderPublish" factoryName="Publish to folder">
+    <riderPublish configuration="Release" delete_existing_files="true" platform="Any CPU" produce_single_file="true" runtime="win-x64" target_folder="$PROJECT_DIR$/launcher-client-avalonia/publish/win-x64" target_framework="net6.0" uuid_high="-4890976677488079081" uuid_low="-5731196012681532756" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/App.axaml b/launcher-client-avalonia/GUI/App.axaml
new file mode 100644
index 0000000..7aa35af
--- /dev/null
+++ b/launcher-client-avalonia/GUI/App.axaml
@@ -0,0 +1,18 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="launcher_client_avalonia.GUI.App">
+    <Application.Styles>
+        <FluentTheme Mode="Dark"/>
+    </Application.Styles>
+    <Application.Resources>
+        <SolidColorBrush x:Key="MyBackgroundColor" Color="#232328"/>
+        <SolidColorBrush x:Key="MyDarkTr"
+                         Opacity="0.8"
+                         Color="#141419" />
+        <SolidColorBrush x:Key="MyGray" Color="#46464B" />
+        <SolidColorBrush x:Key="MyWhite" Color="#F0F0F0" />
+        <SolidColorBrush x:Key="MyGreen" Color="#28C311" />
+        <SolidColorBrush x:Key="MyRed" Color="#E5160A" />
+        <SolidColorBrush x:Key="MySelectionColor" Color="#B7800A" />
+    </Application.Resources>
+</Application>
diff --git a/launcher-client-avalonia/GUI/App.axaml.cs b/launcher-client-avalonia/GUI/App.axaml.cs
new file mode 100644
index 0000000..0c89f07
--- /dev/null
+++ b/launcher-client-avalonia/GUI/App.axaml.cs
@@ -0,0 +1,24 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+namespace launcher_client_avalonia
+{
+    public partial class App : Application
+    {
+        public override void Initialize()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+
+        public override void OnFrameworkInitializationCompleted()
+        {
+            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                desktop.MainWindow = new MainWindow();
+            }
+
+            base.OnFrameworkInitializationCompleted();
+        }
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/LauncherWindow.xaml b/launcher-client-avalonia/GUI/LauncherWindow.xaml
new file mode 100644
index 0000000..f75359c
--- /dev/null
+++ b/launcher-client-avalonia/GUI/LauncherWindow.xaml
@@ -0,0 +1,223 @@
+<Window x:Class="launcher_client_avalonia.GUI.LauncherWindow"
+        xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:local="clr-namespace:launcher_client_avalonia.GUI"
+        Title="Launcher"
+        Width="800"
+        Height="500"
+        MinWidth="800"
+        MinHeight="500"
+        Background="{DynamicResource MyBackgroundColor}">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="5" />
+            <ColumnDefinition />
+            <ColumnDefinition Width="5" />
+        </Grid.ColumnDefinitions>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="5" />
+            <RowDefinition Height="40" />
+            <RowDefinition Height="5" />
+            <RowDefinition />
+            <RowDefinition Height="5" />
+        </Grid.RowDefinitions>
+        <Image x:Name="BackgroundImage"
+               Grid.RowSpan="5"
+               Grid.ColumnSpan="3"
+               HorizontalAlignment="Center"
+               Stretch="UniformToFill" />
+
+        <Grid Grid.Row="1" Grid.Column="1">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition />
+                <ColumnDefinition Width="5" />
+                <ColumnDefinition />
+                <ColumnDefinition Width="5" />
+                <ColumnDefinition />
+                <ColumnDefinition Width="5" />
+                <ColumnDefinition />
+            </Grid.ColumnDefinitions>
+            <local:TabButton x:Name="LibraryButton"
+                             Grid.Column="0"
+                             Content="Library"
+                             FontSize="18"
+                             Style="{DynamicResource MyButtonStyle}" />
+            <local:TabButton x:Name="DownloadsButton"
+                             Grid.Column="2"
+                             Content="Downloads"
+                             FontSize="18"
+                             Style="{DynamicResource MyButtonStyle}" />
+            <local:TabButton x:Name="LogButton"
+                             Grid.Column="4"
+                             Content="Log"
+                             FontSize="18"
+                             Style="{DynamicResource MyButtonStyle}" />
+            <local:TabButton x:Name="SettingsButton"
+                             Grid.Column="6"
+                             Content="Settings"
+                             FontSize="18"
+                             Style="{DynamicResource MyButtonStyle}" />
+
+        </Grid>
+
+        <Grid x:Name="LibraryGrid"
+              Grid.Row="3"
+              Grid.Column="1"
+              Visibility="Visible">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="220" />
+                <ColumnDefinition Width="5" />
+                <ColumnDefinition />
+                <ColumnDefinition Width="5" />
+                <ColumnDefinition Width="220" />
+            </Grid.ColumnDefinitions>
+            <ScrollViewer Grid.Column="0"
+                          HorizontalAlignment="Stretch"
+                          VerticalAlignment="Stretch"
+                          Template="{DynamicResource myScrollViewer}"
+                          VerticalScrollBarVisibility="Auto">
+                <StackPanel x:Name="ProgramsPanel" />
+            </ScrollViewer>
+            <Grid x:Name="ProgramGrid" Grid.Column="2">
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="35" />
+                    <RowDefinition Height="5" />
+                    <RowDefinition Height="35" />
+                    <RowDefinition Height="5" />
+                    <RowDefinition Height="70" />
+                    <RowDefinition Height="5" />
+                    <RowDefinition Height="*" />
+                </Grid.RowDefinitions>
+                <Label x:Name="NameLabel"
+                       Grid.Row="0"
+                       Content="name"
+                       FontSize="19"
+                       FontWeight="Bold"
+                       Style="{DynamicResource MyLabelStyle}" />
+                <StackPanel Grid.Row="2"
+                            HorizontalAlignment="Right"
+                            ClipToBounds="True"
+                            Orientation="Horizontal">
+                    <Button x:Name="RemoveButton"
+                            Width="100"
+                            Margin="2,0"
+                            Background="{DynamicResource MyRed}"
+                            Content="Remove"
+                            Style="{DynamicResource MyButtonStyle}" />
+                    <Button x:Name="InstallButton"
+                            Width="100"
+                            Margin="2,0"
+                            Content="Install"
+                            Style="{DynamicResource MyButtonStyle}" />
+                    <Button x:Name="UpdateButton"
+                            Width="100"
+                            Margin="2,0"
+                            Content="Update"
+                            Style="{DynamicResource MyButtonStyle}" />
+                    <Button x:Name="LaunchButton"
+                            Width="100"
+                            Margin="2,0"
+                            Background="{DynamicResource MyGreen}"
+                            Content="Launch"
+                            Style="{DynamicResource MyButtonStyle}" />
+                </StackPanel>
+                <TextBox x:Name="DescriptionBox"
+                         Grid.Row="4"
+                         Style="{DynamicResource MyTextBoxStyle}"
+                         VerticalScrollBarVisibility="Auto" />
+                <TextBox x:Name="ProgramLogBox"
+                         Grid.Row="6"
+                         Style="{DynamicResource MyTextBoxStyle}"
+                         VerticalScrollBarVisibility="Auto" />
+            </Grid>
+            <Grid Grid.Row="0" Grid.Column="4">
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="95" />
+                    <RowDefinition />
+                </Grid.RowDefinitions>
+                <Grid Grid.Row="0">
+
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition />
+                        <ColumnDefinition />
+                    </Grid.ColumnDefinitions>
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="30" />
+                        <RowDefinition Height="30" />
+                        <RowDefinition Height="30" />
+                    </Grid.RowDefinitions>
+                    <Label Grid.Row="0"
+                           Grid.Column="0"
+                           Content="version:"
+                           Style="{DynamicResource MyLabelStyle}" />
+                    <ComboBox Grid.Row="0"
+                              Grid.Column="1"
+                              Background="{DynamicResource MyDarkTr}"
+                              Template="{DynamicResource MyComboBox}">
+                        <ComboBoxItem IsSelected="True">
+                            <Label Background="Transparent"
+                                   Content="v1"
+                                   Style="{DynamicResource MyLabelStyle}" />
+                        </ComboBoxItem>
+                    </ComboBox>
+                    <Label Grid.Row="1"
+                           Grid.Column="0"
+                           Content="directory:"
+                           Style="{DynamicResource MyLabelStyle}" />
+                    <Label Name="ProgramDirectoryLabel"
+                           Grid.Row="1"
+                           Grid.Column="1"
+                           Content="0"
+                           Style="{DynamicResource MyLabelStyle}" />
+                    <Label Grid.Row="2"
+                           Grid.Column="0"
+                           Content="size:"
+                           Style="{DynamicResource MyLabelStyle}" />
+                    <Label Name="ProgramSizeLabel"
+                           Grid.Row="2"
+                           Grid.Column="1"
+                           Content="0"
+                           Style="{DynamicResource MyLabelStyle}" />
+                </Grid>
+                <ScrollViewer Name="ProgramSettingsViever"
+                              Grid.Row="1"
+                              HorizontalAlignment="Stretch"
+                              VerticalAlignment="Stretch"
+                              VerticalContentAlignment="Top"
+                              Template="{DynamicResource myScrollViewer}" />
+            </Grid>
+        </Grid>
+
+
+        <Grid x:Name="DownloadsGrid"
+              Grid.Row="3"
+              Grid.Column="1"
+              Visibility="Hidden" />
+
+        <Grid x:Name="LogGrid"
+              Grid.Row="3"
+              Grid.Column="1"
+              Visibility="Hidden">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="30" />
+                <RowDefinition />
+            </Grid.RowDefinitions>
+            <Label x:Name="LogfileLabel"
+                   Grid.Row="0"
+                   Grid.Column="0"
+                   Content="logfile"
+                   FontStyle="Italic"
+                   Style="{DynamicResource MyLabelStyle}" />
+            <TextBox x:Name="LogBox"
+                     Grid.Row="1"
+                     Grid.Column="0"
+                     Style="{DynamicResource MyTextBoxStyle}"
+                     VerticalScrollBarVisibility="Auto" />
+        </Grid>
+
+        <Grid x:Name="SettingsGrid"
+              Grid.Row="3"
+              Grid.Column="1"
+              Visibility="Hidden" />
+    </Grid>
+</Window>
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/LauncherWindow.xaml.cs b/launcher-client-avalonia/GUI/LauncherWindow.xaml.cs
new file mode 100644
index 0000000..d48580b
--- /dev/null
+++ b/launcher-client-avalonia/GUI/LauncherWindow.xaml.cs
@@ -0,0 +1,98 @@
+namespace launcher_client_avalonia.GUI;
+
+public partial class LauncherWindow : Window
+{
+    public LauncherWindow()
+    {
+        try
+        {
+            AvaloniaXamlLoader.Load(this);
+            LogBox.Text = Logger.Buffer;
+            Logger.MessageSent += LogHandler;
+            LogfileLabel.Content = Logger.Logfile.Remove(0,Logger.Logfile.LastIndexOf(Путь.Разд)+1);
+            LogfileLabel.MouseLeftButtonDown += (s,e)=>
+                Process.Start("explorer.exe", Logger.Logfile.Remove(Logger.Logfile.LastIndexOf(Путь.Разд)));
+            LogfileLabel.MouseEnter += (s,e)=>LogfileLabel.Foreground=App.MySelectionColor;
+            LogfileLabel.MouseLeave += (s,e)=>LogfileLabel.Foreground=App.MyWhite;
+            LibraryButton.TabGrid = LibraryGrid;
+            DownloadsButton.TabGrid = DownloadsGrid;
+            LogButton.TabGrid = LogGrid;
+            SettingsButton.TabGrid = SettingsGrid;
+            LibraryButton.Click += SelectTab;
+            DownloadsButton.Click += SelectTab;
+            LogButton.Click += SelectTab;
+            SettingsButton.Click += SelectTab;
+            ProgramGrid.Visibility = Visibility.Hidden;
+            SelectTab(LibraryButton, null);
+            FillProgramsPanel();
+            Logger.Log("launcher started");
+        }
+        catch(Exception ex)
+        { LogError("LAUNCHER WINDOW INIT",ex); }
+    }
+
+    void LogHandler(string m) => Dispatcher.Invoke(()=>LogBox.Text += m);
+
+
+    private TabButton CurrentTab;
+    void SelectTab(object sender, RoutedEventArgs _)
+    {
+        if(CurrentTab!=null)
+        {
+            CurrentTab.Background = App.MyDark;
+            CurrentTab.TabGrid.Visibility = Visibility.Collapsed;
+        }
+        var selected = (TabButton)sender;
+        selected.Background = App.MySelectionColor;
+        selected.TabGrid.Visibility = Visibility.Visible;
+        CurrentTab = selected;
+    }
+
+    public Program[] Programs;
+    
+    private void FillProgramsPanel()
+    {
+        Logger.Log("reading descriptors...");
+        string[] descriptors = Directory.GetFiles("descriptors");
+        Programs = new Program[descriptors.Length];
+        for (ushort i = 0; i < descriptors.Length; i++)
+        {
+            string descriptor = descriptors[i];
+            if(descriptor.EndsWith(".descriptor"))
+            {
+                Logger.Log('\t'+descriptor);
+                Programs[i] = new Program(descriptors[i]);
+                ProgramsPanel.Children.Add(Programs[i].ProgramLabel);
+                Programs[i].ProgramSelectedEvent += SelectProgram;
+            }
+        }
+    }
+    
+    public Program DisplayingProgram;
+    public void SelectProgram(Program selectedProg)
+    {
+        try
+        {
+            if (DisplayingProgram != null)
+            {
+                DisplayingProgram.ProgramLabel.Foreground = App.MyWhite;
+                DisplayingProgram.ProgramLabel.FontWeight = FontWeights.Normal;
+            }
+            else ProgramGrid.Visibility = Visibility.Visible;
+
+            selectedProg.ProgramLabel.Foreground = App.MySelectionColor;
+            selectedProg.ProgramLabel.FontWeight = FontWeights.Bold;
+
+            NameLabel.Content = selectedProg.Name;
+            DescriptionBox.Text = selectedProg.Description;
+            BackgroundImage.Source =
+                new BitmapImage(new Uri(
+                    $"{Directory.GetCurrent()}{Путь.Разд}backgrounds{Путь.Разд}{selectedProg.BackgroundFile}", 
+                    UriKind.Absolute));
+            ProgramSettingsViever.Content = selectedProg.SettingsPanel;
+            DisplayingProgram = selectedProg;
+        }
+        catch(Exception ex)
+        { LogError("SelectProgram()",ex); }
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/MessageBox.axaml b/launcher-client-avalonia/GUI/MessageBox.axaml
new file mode 100644
index 0000000..7308955
--- /dev/null
+++ b/launcher-client-avalonia/GUI/MessageBox.axaml
@@ -0,0 +1,9 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="launcher_client_avalonia.GUI.MessageBox"
+        Title="MessageBox">
+    
+</Window>
diff --git a/launcher-client-avalonia/GUI/MessageBox.axaml.cs b/launcher-client-avalonia/GUI/MessageBox.axaml.cs
new file mode 100644
index 0000000..74510da
--- /dev/null
+++ b/launcher-client-avalonia/GUI/MessageBox.axaml.cs
@@ -0,0 +1,19 @@
+using Avalonia.Markup.Xaml;
+
+namespace launcher_client_avalonia.GUI;
+
+public partial class MessageBox : Window
+{
+    public MessageBox()
+    {
+        AvaloniaXamlLoader.Load(this);
+#if DEBUG
+            this.AttachDevTools();
+#endif
+    }
+
+    public static void Show(string text)
+    {
+        throw new NotImplementedException();
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/ProgramLabel.xaml b/launcher-client-avalonia/GUI/ProgramLabel.xaml
new file mode 100644
index 0000000..ba33844
--- /dev/null
+++ b/launcher-client-avalonia/GUI/ProgramLabel.xaml
@@ -0,0 +1,30 @@
+<UserControl x:Class="launcher_client_avalonia.GUI.ProgramLabel"
+             xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:launcher_client_avalonia.GUI"
+             Height="50"
+             Background="{DynamicResource MyDarkTr}"
+             BorderBrush="{Binding Foreground, RelativeSource={RelativeSource Self}}"
+             BorderThickness="3"
+             Foreground="{DynamicResource MyWhite}">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="{Binding Height, RelativeSource={RelativeSource FindAncestor, AncestorType=local:ProgramLabel}}" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+
+        <Image x:Name="IconImage"
+               Grid.Column="0"
+               Margin="3,3,3,3"
+               Stretch="Fill" />
+
+        <Label Name="NameLabel"
+               Grid.Column="1"
+               VerticalContentAlignment="Center"
+               Content="label"
+               FontFamily="Unispace"
+               FontSize="15"
+               FontWeight="Normal"
+               Foreground="{Binding Foreground, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=local:ProgramLabel}}" />
+    </Grid>
+</UserControl>
diff --git a/launcher-client-avalonia/GUI/ProgramLabel.xaml.cs b/launcher-client-avalonia/GUI/ProgramLabel.xaml.cs
new file mode 100644
index 0000000..3624c8c
--- /dev/null
+++ b/launcher-client-avalonia/GUI/ProgramLabel.xaml.cs
@@ -0,0 +1,13 @@
+namespace launcher_client_avalonia.GUI;
+
+public partial class ProgramLabel : UserControl
+{
+    public ProgramLabel(string label, string icon)
+    {
+        AvaloniaXamlLoader.Load(this);
+        NameLabel.Content = label;
+        IconImage.Source = new BitmapImage(new Uri( 
+            $"{Directory.GetCurrent()}{Путь.Разд}icons{Путь.Разд}{icon}", 
+            UriKind.Absolute));
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/ProgramSettingsPanelItem.xaml b/launcher-client-avalonia/GUI/ProgramSettingsPanelItem.xaml
new file mode 100644
index 0000000..edc6f1d
--- /dev/null
+++ b/launcher-client-avalonia/GUI/ProgramSettingsPanelItem.xaml
@@ -0,0 +1,23 @@
+<UserControl x:Class="launcher_client_avalonia.GUI.ProgramSettingsPanelItem"
+             xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:launcher_client_avalonia.GUI"
+             Background="Transparent">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+        <Label Name="KeyLabel" Grid.Column="0"
+               Content="{Binding SettingKey, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=local:ProgramSettingsPanelItem}}"
+               Style="{DynamicResource MyLabelStyle}"
+               FontFamily="default" 
+               FontSize="16"/>
+        <TextBox Name="ValueBox" Grid.Column="1"
+                 HorizontalScrollBarVisibility="Auto"
+                 Style="{DynamicResource MyTextBoxStyle}"
+                 VerticalScrollBarVisibility="Disabled" 
+                 IsReadOnly="False"
+                 Text="{Binding SettingValue, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=local:ProgramSettingsPanelItem}}"/>
+    </Grid>
+</UserControl>
diff --git a/launcher-client-avalonia/GUI/ProgramSettingsPanelItem.xaml.cs b/launcher-client-avalonia/GUI/ProgramSettingsPanelItem.xaml.cs
new file mode 100644
index 0000000..a542d24
--- /dev/null
+++ b/launcher-client-avalonia/GUI/ProgramSettingsPanelItem.xaml.cs
@@ -0,0 +1,41 @@
+namespace launcher_client_avalonia.GUI;
+
+public partial class ProgramSettingsPanelItem : UserControl
+{
+    public static readonly StyledProperty<string> SettingKeyProp = 
+        AvaloniaProperty.Register<ProgramSettingsPanelItem, string>(
+        "SettingKey");
+    public string SettingKey
+    {
+        get => (string)GetValue(SettingKeyProp);
+        set
+        {
+            SetValue(SettingKeyProp, value);
+            
+            KeyLabel.ToolTip = new ToolTip
+            {
+                Content = value,
+                Foreground = App.MyWhite,
+                Background = App.MySoftDark
+            };
+        }
+    }
+
+    public static readonly StyledProperty<string> SettingValueProp = 
+        AvaloniaProperty.Register<ProgramSettingsPanelItem, string>("SettingValue");
+    public string SettingValue
+    {
+        get => (string)GetValue(SettingValueProp);
+        set => SetValue(SettingValueProp, value);
+    }
+
+    public event Action<ProgramSettingsPanelItem> UpdatedEvent;
+    
+    public ProgramSettingsPanelItem(string key, string value)
+    {
+        AvaloniaXamlLoader.Load(this);
+        SettingKey = key;
+        SettingValue = value;
+        ValueBox.TextChanged += (_,_)=> UpdatedEvent?.Invoke(this);
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/GUI/TabButton.cs b/launcher-client-avalonia/GUI/TabButton.cs
new file mode 100644
index 0000000..c9c3f2f
--- /dev/null
+++ b/launcher-client-avalonia/GUI/TabButton.cs
@@ -0,0 +1,11 @@
+namespace launcher_client_avalonia.GUI;
+
+public class TabButton : Button
+{
+    public static readonly StyledProperty<Grid> TabGridProp = AvaloniaProperty.Register<TabButton, Grid>("TabGrid");
+    public Grid TabGrid
+    {
+        get => (Grid)GetValue(TabGridProp);
+        set => SetValue(TabGridProp, value);
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/Launcher.cs b/launcher-client-avalonia/Launcher.cs
new file mode 100644
index 0000000..eff62ef
--- /dev/null
+++ b/launcher-client-avalonia/Launcher.cs
@@ -0,0 +1,80 @@
+global using System;
+global using System.Diagnostics;
+global using System.Net;
+global using System.Text;
+global using System.Collections.Generic;
+global using System.Threading;
+global using System.Linq;
+global using Avalonia;
+global using Avalonia.Controls;
+global using Avalonia.Media;
+global using DTLib;
+global using DTLib.Dtsod;
+global using DTLib.Filesystem;
+global using DTLib.Extensions;
+global using static launcher_client_avalonia.Launcher;
+using System.Reflection;
+using launcher_client_avalonia.GUI;
+
+namespace launcher_client_avalonia;
+
+public static class Launcher
+{
+    public static SolidColorBrush MyDark, MySoftDark, MyWhite, MyGreen, MyOrange, MySelectionColor;
+    public static LauncherConfig Config;
+    public static readonly LauncherLogger Logger = new();
+    public static LauncherWindow CurrentLauncherWindow;
+
+    public static void Main(string[] args)
+    {
+        try
+        {
+            var resources = Application.Current.Resources;
+            MyDark = (SolidColorBrush)resources["MyDarkTr"];
+            MySoftDark = (SolidColorBrush)resources["MyGray"];
+            MyWhite = (SolidColorBrush)resources["MyWhite"];
+            MyGreen = (SolidColorBrush)resources["MyGreen"];
+            MyOrange = (SolidColorBrush)resources["MySelectionColor"];
+            MySelectionColor = (SolidColorBrush)resources["MySelectionColor"];
+            
+            Logger.Enable();
+            
+            AppBuilder.Configure<App>()
+                .UsePlatformDetect()
+                .LogToTrace()
+                .StartWithClassicDesktopLifetime(args);
+
+            Config = new LauncherConfig();
+            Directory.Create("descriptors");
+            Directory.Create("icons");
+            Directory.Create("backgrounds");
+            Directory.Create("installed");
+            Directory.Create("settings");
+            File.WriteAllText($"descriptors{Путь.Разд}default.descriptor.template",
+                ReadResource("launcher_client_avalonia.Resources.default.descriptor.template"));
+            CurrentLauncherWindow = new LauncherWindow();
+            CurrentLauncherWindow.Show();
+
+        }
+        catch (Exception ex)
+        {
+            LogError("STARTUP", ex);
+        }
+    }
+
+    public static string ReadResource(string resource_path)
+    {
+        using var resourceStreamReader = new System.IO.StreamReader(
+            Assembly.GetExecutingAssembly().GetManifestResourceStream(resource_path)
+            ?? throw new Exception($"embedded resource <{resource_path}> not found"),
+            Encoding.UTF8);
+        return resourceStreamReader.ReadToEnd();
+    }
+
+    public static void LogError(string context, Exception ex)
+    {
+        string errmsg = $"{context} ERROR:\n{ex}";
+        MessageBox.Show(errmsg);
+        Logger.Log(errmsg);
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/LauncherConfig.cs b/launcher-client-avalonia/LauncherConfig.cs
new file mode 100644
index 0000000..df0c6fc
--- /dev/null
+++ b/launcher-client-avalonia/LauncherConfig.cs
@@ -0,0 +1,65 @@
+namespace launcher_client_avalonia;
+
+public class LauncherConfig
+{
+
+    public record struct Server(IPEndPoint EndPoint, string Domain)
+    {
+        public Server(string domain, int port) : this
+            (new IPEndPoint(Dns.GetHostAddresses(domain)[0], port), domain)
+        { }
+        public Server(IPAddress address, int port) : this
+            (new IPEndPoint(address, port), "")
+        { }
+    }
+    
+    public const int Version=1;
+    public Server[] ServerAddresses;
+
+    const string configFile = "launcher.dtsod";
+    public LauncherConfig()
+    {
+        // читает дефолтный конфиг из ресурсов
+        DtsodV23 updatedConfig;
+        DtsodV23 updatedDefault = new(ReadResource("launcher_client_avalonia.Resources.launcher.dtsod"));
+        // проверка и обновление конфига
+        if (File.Exists(configFile))
+        {
+            DtsodV23 oldConfig = new(File.ReadAllText(configFile));
+            updatedConfig = DtsodConverter.UpdateByDefault(oldConfig, updatedDefault);
+        }
+        else updatedConfig = updatedDefault;
+
+        // парсит парсит полученный дтсод в LauncherConfig
+        List<object> serversD = updatedConfig["server"];
+        ServerAddresses = new Server[serversD.Count];
+        ushort i = 0;
+        foreach (DtsodV23 serverD in serversD)
+        {
+            int port = serverD["port"];
+            // server must have <domain> or <ip> property
+            ServerAddresses[i++] = serverD.TryGetValue("domain", out dynamic dom)
+                ? new Server(dom, port)
+                : new Server(IPAddress.Parse(serverD["ip"]), port);
+        }
+        
+        WriteToFile();
+    }
+
+    // записывает обновлённый конфиг в файл
+    public void WriteToFile()
+    {
+        StringBuilder b = new();
+        b.Append("version: ").Append(Version).Append(";\n");
+        foreach (var server in ServerAddresses)
+        {
+            b.Append("$server: {\n\t");
+            if (server.Domain == "")
+                b.Append("ip: \"").Append(server.EndPoint.Address);
+            else b.Append("domain: \"").Append(server.Domain);
+            b.Append("\";\n\tport: ")
+                .Append(server.EndPoint.Port)
+                .Append(";\n};\n");
+        }
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/LauncherLogger.cs b/launcher-client-avalonia/LauncherLogger.cs
new file mode 100644
index 0000000..5e5658b
--- /dev/null
+++ b/launcher-client-avalonia/LauncherLogger.cs
@@ -0,0 +1,36 @@
+using System.Globalization;
+using DTLib.Loggers;
+
+namespace launcher_client_avalonia;
+
+public class LauncherLogger : BaseLogger
+{
+    public string Buffer="";
+
+    public LauncherLogger() : base("launcher-logs", "launcher-client-win")
+    { }
+    
+    public event Action<string> MessageSent;
+    
+    public override void Log(params string[] msg)
+    {
+        lock (Logfile) if (!IsEnabled) return;
+        
+        StringBuilder strB = new();
+        strB.Append('[')
+            .Append(DateTime.Now.ToString(CultureInfo.InvariantCulture))
+            .Append("]: ");
+        if (msg.Length == 1) strB.Append(msg[0]);
+        else for (ushort i = 0; i < msg.Length; i++)
+                strB.Append(msg[++i]);
+        strB.Append('\n');
+        string _buffer = strB.ToString();
+        
+        lock(Buffer) Buffer += _buffer;
+        
+        MessageSent?.Invoke(_buffer);
+        
+        if (WriteToFile)
+            lock(Logfile) File.AppendAllText(Logfile, _buffer);
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/MainWindow.axaml b/launcher-client-avalonia/MainWindow.axaml
new file mode 100644
index 0000000..d242e0d
--- /dev/null
+++ b/launcher-client-avalonia/MainWindow.axaml
@@ -0,0 +1,9 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="launcher_client_avalonia.MainWindow"
+        Title="launcher_client_avalonia">
+    Welcome to Avalonia!
+</Window>
diff --git a/launcher-client-avalonia/MainWindow.axaml.cs b/launcher-client-avalonia/MainWindow.axaml.cs
new file mode 100644
index 0000000..1fcb75b
--- /dev/null
+++ b/launcher-client-avalonia/MainWindow.axaml.cs
@@ -0,0 +1,12 @@
+using Avalonia.Controls;
+
+namespace launcher_client_avalonia
+{
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/Program.cs b/launcher-client-avalonia/Program.cs
new file mode 100644
index 0000000..309816c
--- /dev/null
+++ b/launcher-client-avalonia/Program.cs
@@ -0,0 +1,86 @@
+using System.Windows.Controls;
+using launcher_client_avalonia.GUI;
+
+namespace launcher_client_avalonia;
+
+public class Program
+{
+    public readonly string Name;
+    public readonly string Directory;
+    public readonly string Description;
+    public readonly string IconFile;
+    public readonly string BackgroundFile;
+    public readonly string LaunchFile;
+    public readonly string LaunchArgs;
+    
+    public readonly ProgramLabel ProgramLabel;
+
+    public readonly string SettingsFile;
+    public readonly DtsodV23 Settings;
+
+    public readonly StackPanel SettingsPanel;
+    
+    private Process ProgramProcess;
+    
+    public event Action<Program> ProgramSelectedEvent;
+
+    public Program(string descriptorFile)
+    {
+        DtsodV23 descriptor= new(File.ReadAllText(descriptorFile));
+        Name = descriptor["name"];
+        Directory = descriptor["directory"];
+        Description = descriptor["description"];
+        IconFile = descriptor["icon"];
+        BackgroundFile = descriptor["background"];
+        string startcommand = descriptor["launchcommand"];
+        LaunchFile = startcommand.Remove(startcommand.IndexOf(' '));
+        LaunchArgs = startcommand.Remove(0,startcommand.IndexOf(' '));
+        
+        ProgramLabel = new ProgramLabel(Name, IconFile);
+        ProgramLabel.MouseLeftButtonDown += (_, _) => ProgramSelectedEvent?.Invoke(this);
+        
+        SettingsFile = $"settings{Путь.Разд}{Directory}.settings";
+        Settings = File.Exists(SettingsFile)
+            ? DtsodConverter.UpdateByDefault(
+                new DtsodV23(File.ReadAllText(SettingsFile)),
+                descriptor["default_settings"])
+            : descriptor["default_settings"];
+        File.WriteAllText(SettingsFile, Settings.ToString());
+        SettingsPanel = new StackPanel();
+        foreach (var setting in Settings)
+        {
+            ProgramSettingsPanelItem settingUi = new(setting.Key, setting.Value);
+            settingUi.UpdatedEvent += UpdateSetting;
+            SettingsPanel.Children.Add(settingUi);
+        }
+    }
+
+    void UpdateSetting(ProgramSettingsPanelItem uiElem)
+    {
+        Settings[uiElem.SettingKey] = uiElem.SettingValue;
+        File.WriteAllText(SettingsFile, Settings.ToString());
+    }
+
+    public void Launch()
+    {
+        if(ProgramProcess.HasExited)
+            throw new Exception($"can't start program <{Name}>, because it hadn't stopped yet");
+        ProgramProcess = Process.Start(LaunchFile, LaunchArgs);
+        if (ProgramProcess is null) 
+            throw new Exception($"program <{Name}> started, but ProgramProcess is null");
+        CurrentLauncherWindow.LaunchButton.Content = "Stop";
+        ProgramProcess.Exited += ProgramExitedHandler;
+    }
+
+    public void Stop()
+    {
+        if (!ProgramProcess.HasExited)
+            throw new Exception($"can't stop program <{Name}>, because it had stopped already");
+        ProgramProcess.Kill(true); 
+    }
+
+    void ProgramExitedHandler(object sender, EventArgs eargs)
+    {
+        CurrentLauncherWindow.LaunchButton.Content = "Start";
+    }
+}
\ No newline at end of file
diff --git a/launcher-client-avalonia/Resources/default.descriptor.template b/launcher-client-avalonia/Resources/default.descriptor.template
new file mode 100644
index 0000000..876af23
--- /dev/null
+++ b/launcher-client-avalonia/Resources/default.descriptor.template
@@ -0,0 +1,6 @@
+name: "";           #label, which displays in launcher
+directory: "";      #name of program' directory on server and client
+description: "";    #desctiption, which displays in launcher
+icon: "";           #name of the icon file
+background: "";     #name of the background file
+launchcommand: "";  #command, which starts the program
\ No newline at end of file
diff --git a/launcher-client-avalonia/Resources/launcher.dtsod b/launcher-client-avalonia/Resources/launcher.dtsod
new file mode 100644
index 0000000..60f367a
--- /dev/null
+++ b/launcher-client-avalonia/Resources/launcher.dtsod
@@ -0,0 +1,6 @@
+version: 1;
+
+$server: {
+    ip: "127.0.0.1";
+    port: 25000;
+};
\ No newline at end of file
diff --git a/launcher-client-avalonia/Resources/logo-D.ico b/launcher-client-avalonia/Resources/logo-D.ico
new file mode 100644
index 0000000..9b68a7e
Binary files /dev/null and b/launcher-client-avalonia/Resources/logo-D.ico differ
diff --git a/launcher-client-avalonia/launcher-client-avalonia.csproj b/launcher-client-avalonia/launcher-client-avalonia.csproj
new file mode 100644
index 0000000..9887d35
--- /dev/null
+++ b/launcher-client-avalonia/launcher-client-avalonia.csproj
@@ -0,0 +1,66 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net6.0</TargetFramework>
+        <ImplicitUsings>disable</ImplicitUsings>
+        <Nullable>disable</Nullable>
+        <DebugType>full</DebugType>
+        <Configurations>Debug;Release</Configurations>
+        <Platforms>AnyCPU</Platforms>
+        <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+        <ApplicationIcon>Resources/logo-D.ico</ApplicationIcon>
+        <TrimMode>copyused</TrimMode>
+        <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+        <TargetCulture Label="Invariant" />
+    </PropertyGroup>
+    
+    <ItemGroup>
+        <PackageReference Include="Avalonia" Version="0.10.15" />
+        <PackageReference Include="Avalonia.Desktop" Version="0.10.15" />
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Include="Avalonia.Diagnostics" Version="0.10.15" Condition="'$(Configuration)' == 'Debug'" />
+        <PackageReference Include="XamlNameReferenceGenerator" Version="1.3.4" />
+        <Reference Include="..\..\DTLib\bin\Release\net6.0\DTLib.dll" />
+        <Reference Include="..\..\DTLib\bin\Release\net6.0\DTLib.Dtsod.dll" />
+        <Reference Include="..\..\DTLib\bin\Release\net6.0\DTLib.Network.dll" />
+        <EmbeddedResource Include="Resources\*" />
+    </ItemGroup>
+    
+    <ItemGroup>
+        <AvaloniaXaml Remove="publish\**" />
+        <EmbeddedResource Remove="publish\**" />
+        <Compile Remove="publish\**" />
+        <None Remove="publish\**" />
+        <Compile Update="GUI\App.axaml.cs">
+          <DependentUpon>App.axaml</DependentUpon>
+          <SubType>Code</SubType>
+        </Compile>
+    </ItemGroup>
+    
+    <ItemGroup>
+      <Page Include="GUI\LauncherWindow.xaml">
+        <Generator>MSBuild:Compile</Generator>
+        <XamlRuntime>Wpf</XamlRuntime>
+      </Page>
+      <Page Include="GUI\ProgramLabel.xaml">
+        <Generator>MSBuild:Compile</Generator>
+        <XamlRuntime>Wpf</XamlRuntime>
+      </Page>
+      <Page Include="GUI\ProgramSettingsPanelItem.xaml">
+        <Generator>MSBuild:Compile</Generator>
+        <XamlRuntime>Wpf</XamlRuntime>
+      </Page>
+    </ItemGroup>
+    
+    <Target Name="PostBuild-Release" AfterTargets="PostBuildEvent" Condition="'$(Configuration)' == 'Release'">
+        <Exec Command="cp -f bin/Release/runtimes/linux-x64/native/* bin/Release/" />
+        <Exec Command="cp -f bin/Release/runtimes/win-x64/native/* bin/Release/" />
+        <Exec Command="rm -rf bin/Release/runtimes" />
+    </Target>
+    <Target Name="PostBuild-Debug" AfterTargets="PostBuildEvent" Condition="'$(Configuration)' == 'Debug'">
+        <Exec Command="cp -f bin/Debug/runtimes/linux-x64/native/* bin/Debug/" />
+        <Exec Command="cp -f bin/Debug/runtimes/win-x64/native/* bin/Debug/" />
+        <Exec Command="rm -rf bin/Debug/runtimes" />
+    </Target>
+    
+</Project>