Please tell me how to proceed with collective development using Xcode.

https://teratail.com/questions/204380
But I have a reply (with a negative rating), but

• You must have a management system
  To complete a project, you need a lot of different types of work, not just programmers, but scenario writers, designers, illustrators, test players, voice actors, music, manual writers, translators, etc. Then you need someone who can organize it (so-called great people).It's a big mistake to think that only programmers can get together and work. If you don't have enough human resources, it's too early to touch.

• There must be a system that eliminates reversals
  In large-scale projects, the division of labor is inevitable, so if there is a return, we will repeat "Fixed → Not fixed!" and will not move forward.We need a system to eliminate this.

Must have a management system
To complete a project, you need a lot of different types of work, not just programmers, but scenario writers, designers, illustrators, test players, voice actors, music, manual writers, translators, etc. Then you need someone who can organize it (so-called great people).It's a big mistake to think that only programmers can get together to work, and it's too early to touch if you don't have enough human resources.

There must be a system that eliminates re-entry
In large-scale projects, the division of labor is inevitable, so if there is a return, we will repeat "Fixed → Not fixed!" and will not move forward.We need a system to eliminate this.

As part of this, appears.First, ask yourself if there is a system you can develop.