It was only a couple of days ago that the Sileo Team announced the upcoming release of the Sileo package manager for iOS 13 on the new bootrom-based checkra1n jailbreak. Early morning on this Christmas Day, the Sileo Team delivered on that promise.
In an announcement shared just this morning, the Sileo Team said that users could add a custom repository to their Cydia app on the checkra1n jailbreak to find everything they would need to install Sileo on their liberated iOS 13 device: