diff --git a/Manager.ps1 b/Manager.ps1
index 54e82b0..3a821c0 100644
--- a/Manager.ps1
+++ b/Manager.ps1
@@ -87,30 +87,42 @@ function check_arch
 }
 function check_os
 {
-	$win10 = "Microsoft Windows 10"
-	$win11 = "Microsoft Windows 11"
-	$os = [string](Get-CimInstance Win32_OperatingSystem).Name
-	
-	if ($os.Contains($win11))
+	if ($IsWindows)
 	{
-		success "$win11 detected."
-		$global:check += 1
+		$win10 = "Microsoft Windows 10"
+		$win11 = "Microsoft Windows 11"
+		$os = [string](Get-CimInstance Win32_OperatingSystem).Name
+		
+		if ($os.Contains($win11))
+		{
+			success "$win11 detected."
+			$global:check += 1
+		}
+		elseif ($os.Contains($win10))
+		{
+			success "$win10 detected."
+			$global:check += 1
+		}
 	}
-	elseif ($os.Contains($win10))
+	elseif ($IsMacOS)
 	{
-		success "$win10 detected."
+		error "Operating System is not supported yet."
+	}
+	elseif ($IsLinux)
+	{
+		success "Linux detected."
 		$global:check += 1
 	}
 	else
 	{
-		error "Operating System is not supported."
+		error "Couldn't detect Operating System."
 	}
 }
 function getkey
 {
 	$exists = Test-Path -Path ".\longvinter-windows-server\Longvinter\Saved\Logs\Longvinter.log" -PathType Leaf
 	
-	IF ($exists)
+	if ($exists)
 	{
 		Write-Host (Select-String -Pattern "'[0-9a-f]{32}" -Path ".\longvinter-windows-server\Longvinter\Saved\Logs\Longvinter.log").Matches.groups[0].value.ToString().Replace("'", "") -NoNewline -ForegroundColor Green
 	}
@@ -169,19 +181,21 @@ function uninstall
 # Handle commandline arguments
 if ($args.Count -eq 1)
 {
-	if ($args[0].ToString().ToLower() -eq "getkey")
+	$arg = $args[0].ToString().ToLower()
+
+	if ($arg -eq "getkey")
 	{
 		getkey
 	}
-	elseif ($args[0].ToString().ToLower() -eq "update")
+	elseif ($arg -eq "update")
 	{
 		update
 	}
-	elseif ($args[0].ToString().ToLower() -eq "backup")
+	elseif ($arg -eq "backup")
 	{
 		backup
 	}
-	elseif ($args[0].ToString().ToLower() -eq "uninstall")
+	elseif ($arg -eq "uninstall")
 	{
 		Write-Host "Uninstalling the server will delete everything in this folder, including backups."
 		$answer = Read-Host "> Are you sure you want to uninstall the server? y/n"