I made a good bit of money in undergrad and grad school building software in Turbo Vision in the early 90s. The biggest project was writing all the software in

I made a good bit of money in undergrad and grad school building software in Turbo Vision in the early 90s. The biggest project was writing all the software included with this college textbook: https://www.betterworldbooks.com/product/detail/quality-control-0135011159 https://www.betterworldbooks.com/product/detail/quality-cont.... I found out later that the software in that book ended up being used in industry, including Jim Beam (the whiskey brand) using it in their distillery.