https://techcrunch.com/2017/11/27/ios-jailbreak-repositories-close-as-user-interest-wanes/

A few years ago jailbreaking your iPhone was all the rage. The cat-and-mouse game of hackers versus Apple was great fun and some of the open source products available to jailbreakers – namely the Cydia alternative app store – added amazing features and customizability to the iPhone. Some devs even launched only on jailbroken phones, thumbing their noses at Apple’s walled garden.

Now, however, the jailbreak community is shriveling up and blowing away. Now two major repositories have closed, leaving very little for the active jailbreaker to install and run.