What can be considered best practise for renaming Xcode projects (step by step)? Couldn't find information on the subject in Xcode help.

Xcode 16 beta, installed on a macOS 15 beta VM, on macOS 14.5 host, does not let me log into my account. 'An unknown error occurred' after entering password. Can't open or create a project.

When working in parallel on 2 projects (i.e. a server and a client app project). The Claude Code agents in those projects should be able to communicate with each other to improve the flow of information (i.e. changes in models, DTOs). The developer should supervise the communication and can block, if necessary.