highminded/ui/controls/SettingsUserControl.axaml

<UserControl 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"
             xmlns:vm="using:highminded.models"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="highminded.ui.controls.SettingsUserControl"
             x:DataType="vm:SettingsViewModel">

    <Grid Margin="15" RowSpacing="10" ColumnSpacing="10" RowDefinitions="Auto,Auto,Auto,Auto,Auto"
          ColumnDefinitions="*,*">

        <StackPanel Grid.Row="0" Grid.Column="0">
            <TextBlock Text="Model" />
            <TextBox Text="{Binding Model}" />
        </StackPanel>

        <StackPanel Grid.Row="0" Grid.Column="1">
            <TextBlock Text="API URL" />
            <TextBox Text="{Binding ApiUrl}" />
        </StackPanel>

        <StackPanel Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2">
            <TextBlock Text="API Key" />
            <TextBox PasswordChar="*" Text="{Binding ApiKey}" />
        </StackPanel>

        <StackPanel Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2">
            <TextBlock Text="Screenshot Prompt" />
            <TextBox TextWrapping="Wrap" MinLines="3" MaxLines="3" Text="{Binding ScreenshotPrompt}" />
        </StackPanel>

        <StackPanel Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="2">
            <TextBlock Text="Audio Prompt" />
            <TextBox TextWrapping="Wrap" MinLines="3" MaxLines="3" Text="{Binding AudioPrompt}" />
        </StackPanel>

        <StackPanel Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2">
            <Button Content="Save" Click="SaveSettingsBtn_OnClick" />
        </StackPanel>

    </Grid>
</UserControl>