Alcatraz was one of the most notorious and coolest prisons in history, known around the world for its crushing brutality and strict control of its inmates. At its peak it housed many of the legendary badasses of its day, from Al Capone to Machine Gun Kelly to Whitey Bulger. However, what made it so effective also made it problematic for the long term. The prison was physically isolated on an island far away from the mainland. Freshwater, supplies, food, and fuel all needed to be delivered by boat. Millions of dollars were required to apply maintenance for upkeep, not to mention the daily operating costs to simply run the facility. All of this made it very expensive to maintain, which eventually put the prison out of business in the 1960s. The government simply believed that is was cheaper and easier to utilize prisons on the mainland, such as the ADX supermax in Colorado, now known as the Alcatraz of the Rockies. However, the true Alcatraz has such a foreboding and infamous history that would be a shame for it to go to waste as the national park that it was turned into, The world has changed in the 21st century, with new technologies and methods being developed, and one may as well utilize the notorious island for story purposes. In this history, the government decides to re-open the prison as a modern day supermax to house the most dangerous criminals today, such as El Chapo, Osama Bin Laden, John Gotti, and other infamous names. This is partly to take advantage of the island's feared reputation and to punish its inmates more severly. Part of designing a realistic scenario is by eliminating the issues that led to the closure of the prison in the first place, such as reducing its cost, isolation, and making it easier to maintain the facility. It also needs to be made more practical as a solution than running a prison on the mainland. How would I be able to make this work?