'Shortcut' for transferring an existing project to another platform?

[MarkusPiotrowski]

Suggest I have a project developed with beeware on PC/Win and now want to transfer it to MacOS and Linux. On the other computers (after setting up briefcase) do I always have to run briefcase new and go to the set-up procedure? Or are there some shortcuts possible? E.g. can I copy the pyproject.toml file or is there another way to save me from typing the identical stuff three times?

[freakboy3742]

briefcase new is only a "wizard" helper to construct an initial pyproject.toml and project layout. It has no special role in the process beyond that initial creation; and, if you wanted to, you could manually generate everything that briefcase new does, and never run briefcase new at all.

If you have an existing project that has already been used to build a Windows project, and you now want to deploy that same project to other platforms, you can copy the project folder (pyproject.toml and all) to another computer, and call briefcase run on that new machine. There should be no need to re-type any of the details in pyproject.toml; and while there will be a second copy of the file, that's something that can be managed by checking your project into a version control system (like git) and cloning to the second/third/... location.