Support user configs

[browniebroke]

Is your feature request related to a problem? Please describe.

Copier recently added support for user defined configs, where one can set some "global" variables in a config file to pre-fill them when running a template. They suggest a few "well-known" variables which this template should try to adopt: https://copier.readthedocs.io/en/latest/settings/#well-known-variables

That will probably end up being a breaking change for the template as the inputs will change and will prevent folks to run copier update.

Describe alternatives you've considered

n/a

Additional context

PR: copier-org/copier#1940

Documentation: https://copier.readthedocs.io/en/latest/settings/

[34j]

I asked about this here: https://github.com/orgs/copier-org/discussions/1980
Although this (#900) will probably only make it necessary to re-enter the variables or create a config file.

[browniebroke]

Very cool this thing about migration 👍

[34j]

Very cool this thing about migration 👍

Yes but note that you need the version at the time this change was made.
Since I do not know when you will merge the PR, you will (eventually) need to take over #900 yourself or open your own PR and specify the version.

[browniebroke]

Making a note for myself to the docs: https://copier.readthedocs.io/en/stable/configuring/#migrations

I think I need to start tagging versions of this template which would help with the problems you raised in #853 as you could follow the releases of the project