Renaming a project
Keep the same internal code name
For example Totem is the internal code name for the Videos application.
No need to rename everything internally, as long as when using the application only the new name is visible (except perhaps in the About dialog where it can make sense to refer to the internal code name to easily search things about it on the web).
- If the project is part of GNOME Core, see with the release team, gnome-build-meta, etc.
If the project is an application, add the old *.desktop file name in the AppData to not loose reviews and ratings in gnome-software, see this blog post. This is done with <provides> and <id> tags (in 2017 at least).