My initial question for my intention to contribute concerns the "outside" availability of my template instance.

Indeed, I would like to design and maintain project templates that could be imported (from a git(hub/lab) into an instance.

In a first overview of the tool I didn't see if it was possible "easy" to export a "project" (the fact that it's a template or not doesn't seem to me to be a blocker)... to effortlessly re-import it into another instance.

Ok I found this : Feature: Export / import of individual projects (OP-11803) | Feature OP-11803: Export / import of individual projects | OpenProject | OpenProject Community