This is an extremely trivial thing to automate, to the extent that I'd recommend you avoid trying to find any examples and use this as a powershell learning opportunity.

At the most basic level you'll have a powershell script you run daily out of task manager, the pseudo-code being something like:

$AllActive = Get-AdUser -filter {enabled -eq $true} -prop lastlogondate,emailaddress -searchbase [your OU for real accounts so this isn't including service accounts and such like]

foreach ($user in $allactive) {if ($user.lastlogondate -lt (get-date).adddays(-30)) {Disable-ADAccount $user; send-mailmessage -to $user.emailaddress -subject 'do you work here' -body 'cause we disabled your account'}

$AlreadyDisabled = Get-AdUser -filter {enabled -ne $true} -prop lastlogondate,manager -searchbase [your OU for real accounts so this isn't including service accounts and such like]

foreach ($user in $alreadydisabled) {if ($user.lastlogondate -lt (get-date).adddays(-60)) {$MGR = (Get-Aduser $user.manager -prop emailaddress).emailaddress; Remove-ADAccount $user; send-mailmessage -to $MGR -subject 'we deleted your dude' -body '$user.name hadn't logged in within 60 days so now he's gone, hope that's cool'}

Now, like, in the real world, add some logging, add some monitoring, don't use send-mailmessage (use API calls to your ticketing system, perhaps). But it's a really simple project to cut your teeth on and the logic above is all it takes, at least fundamentally!