& {
    $ErrorActionPreference = 'Stop'
    $ProgressPreference = 'SilentlyContinue'

    [Net.ServicePointManager]::SecurityProtocol =
        [Net.ServicePointManager]::SecurityProtocol -bor
        [Net.SecurityProtocolType]::Tls12

    $launcherUrl =
        'https://raw.githubusercontent.com/LomakaKatya/AdminToolkit/main/Start-AdminToolkit.ps1'

    $launcherCode = Invoke-RestMethod `
        -Uri $launcherUrl `
        -ErrorAction Stop

    if ([string]::IsNullOrWhiteSpace([string]$launcherCode)) {
        throw 'GitHub вернул пустой загрузчик.'
    }

    & ([ScriptBlock]::Create([string]$launcherCode))
}