Basically Cydia is an apt manager for jailbroken iOS devices and while Cydia itself is open-source, the tools required to get tweak injection (Mobile Substrate) are not, making Cydia itself useless for newer jailbreaks released. Making Cydia not only a monopoly but centralizing the tools required to make it useful at all.
What's the story with that?
Basically Cydia is an apt manager for jailbroken iOS devices and while Cydia itself is open-source, the tools required to get tweak injection (Mobile Substrate) are not, making Cydia itself useless for newer jailbreaks released. Making Cydia not only a monopoly but centralizing the tools required to make it useful at all.