Revert "Here's the new version of TicketTracker, implementing IOC"

This reverts commit 39fd185ff1471ce1320cd9f69b0a805578db84b5.
Revert "Revert "Here's the new version of TicketTracker, implementing IOC""

This reverts commit a3d9496669cfdd1ef3ed74bb407be8e4b0a395e6.