Full Release

• Redo some MVVM-patterns using my own tiny MVVM "framework" for it
• Port to use the new C# nullable context
• Fix some crashes that could occur on application shutdown

Finetune

• Save last loaded profile
• Status bar
• Port framework of core audio

Unified Configuration

• Move all configuration parts into one json
• Implement Hidden category as requested in #1
• Port CoreAudio to .Net 5

Basic Feature Complete

• Control volumes similar to the built-in windows mixer
• Map programs to editable categories
• Control volumes of categories and all their mapped programs
• Profiles holding predefined volume levels for categories
• Global hotkeys to control profiles and category volume levels