Easy create 2 factories one inside the prison and one outside. When someone from the work program gets out and there’s an opening they can get a job right away in the outside factory. By factory I mean a building with workspaces they could build themselves.

Preferably not in the remote vicinity. Also you need to separate the inmates from the released people to prevent smuggling.

Set a cap on the inside or outside whatever you think will reduce recidivism. Call exprisoners back if there’s a new project where you need more people.