most people rightly oppose slavery. but confining people to cages for years at a time is pretty bad too. if it's possible to justify imprisonment in the first place, are all forms of forced labor significantly worse? what if the prisoners get training as webdevs and have to spend 6-8 hours on weekdays improving the UI of government websites. they get an aeron chair, free coffee, ping pong, etc., and when they get released they have some experience to list on their resume. kind of an absurd proposal, but hopefully it illustrates the point of my question: is it immoral to have them do literally anything to defray the cost of their imprisonment?