An onsite interview can (and probably should) involve sitting you in front of their computer, and getting you to close a ticket.
If you give people homework problems, then it's possible they will either palm them off to a more competent friend (or just pay $100 for a freelancer); or consider it an insulting waste of time.
Neither will test whether the candidate is reliable. But at least an onsite test will be harder for them to fob off to someone else; and it's less of a waste of time. It might take them a day or more to set up a "hello world" build at home (depending on the build requirements, and how well you've automated things).
An onsite interview can (and probably should) involve sitting you in front of their computer, and getting you to close a ticket.
If you give people homework problems, then it's possible they will either palm them off to a more competent friend (or just pay $100 for a freelancer); or consider it an insulting waste of time.
Neither will test whether the candidate is reliable. But at least an onsite test will be harder for them to fob off to someone else; and it's less of a waste of time. It might take them a day or more to set up a "hello world" build at home (depending on the build requirements, and how well you've automated things).