winui-setup

Purpose

Install and verify the prerequisites every other winui-* skill assumes are already present on the machine.

This skill is idempotent — every step checks first, skips if already satisfied, prints [OK] already installed and moves on. Re-running on a fully set-up machine is a fast no-op.

Steps

The first thing to do is batch all detection up front — run every check in parallel/together so you can show the user the full picture before installing anything. Then install only what's missing.

Detect everything

Run all of these together; collect the results:

# .NET SDK — accept any installed SDK >= 8.0
$dotnetSdks = (& dotnet --list-sdks 2>$null) -replace ' \[.*$',''
$dotnetOk   = $dotnetSdks | ForEach-Object { [version]($_ -split '-')[0] } |
              Where-Object { $_.Major -ge 8 } | Select-Object -First 1