The TLK MIM Priviledged Access Management (PAM) solution is already available via Github. Users can log into the the MIM Portal and make request for Elevated access via the PAM JIT tool. The requests will go to approvers if the role requested requires approval.
Suppose its an emergency, the approver is on vacation or is not near a computer. Everyone has their Smartphone with them today, the PowerApps Approver app executes approval from anywhere.
This Vblog will show how the tool works.
Here is a short 3 minute video on the tool