WinUIShell is a PowerShell module that allows you to create WinUI 3 applications in PowerShell. Since the API of WinUIShell tries following the WinUI 3's API, you can read the Windows App SDK ...
OneShot-Script-Wrapper (for the moment) needs ruby 2.7+ installed on your system and, Powershell. In addition to those, you will need to allow for local ps1 scripts to be run on your system.