Cuba's model is very similar with some changes, they still take 30% for room and board, but because the Cuban prisons aren't in insanely remote regions that are being developed, you're mostly just working as a farmhand for like 3 months to 5 years and are still allowed visitations and freedom to participate in the community (though you have to wear a shirt that lets everyone know you're a prisoner).
There's also a huge focus on education, both political and industrial, and participation in this programs can continually reduce your sentence.
Cuba's model is very similar with some changes, they still take 30% for room and board, but because the Cuban prisons aren't in insanely remote regions that are being developed, you're mostly just working as a farmhand for like 3 months to 5 years and are still allowed visitations and freedom to participate in the community (though you have to wear a shirt that lets everyone know you're a prisoner).
There's also a huge focus on education, both political and industrial, and participation in this programs can continually reduce your sentence.