### Problem to solve We lack documentation about the file tree. (Kai noted this in https://gitlab.com/gitlab-org/gitlab/-/issues/371903#note_1078519728.) I assume we'd add it in https://docs.gitlab.com/ee/user/project/repository/ but I'm not sure what all I need to know? ### Other links/references Related to https://gitlab.com/gitlab-org/gitlab/-/issues/371903+ where @phikai spotted the need a long, long time ago and I just found the to-do.