Security researcher Frans Rosén wrote about a CloudKit bug he accidentally found that affected Apple News, Shortcuts, and iCrowd+.
On the third day, I started to connect the dots, realized how certain assets connected to other assets, and started to understand more how things worked. This is when some of the first bugs popped up, finally restoring my self-esteem a bit, making me more relaxed and focused going forward.
I dug up an old jailbroken iPad I had, which allowed me to proxy all content through my laptop. I downloaded all Apple owned apps and started looking at the traffic.