a central repository for Extensions

[hugoledoux]

To simplify the use of Extensions and facilitate their adoption, we could create one github repository to host them all. This would be similar to what Typst does for the templates and package: https://github.com/typst/packages/

This would ensure that we know of all the Extensions, and that sofware using them would easily know where to fetch them and no CORS issues and people moving them.

With Typst to submit an Extension you just fork the repo, add a new folder, and make a PR. We would use the same.

Just an idea for the future.

[hugoledoux]

This would also be similar to what STAC does for its Extensions: https://stac-extensions.github.io