Using a signed route, I can log you into this site without you needing a password.

                            echo App\User::find(2)->createPasswordlessLoginLink();
                        

https://edgrosvenor.me/magic-login/2?expires=1611804085&user_type=app-user&signature=b4a25c6a7c4ade73e8a20fdc741876994e26c50497686de6ff9e7b63178aeba3

This package provides a trait that makes it easy to configure things like the expiration time for the link, whether it is single use or can be used multiple times, and where the user should redirect after logging in. It works with custom authentication middleware so you can use it with multiple user types side by side.