Update this template on an existing project

[Jason5480]

Hello, I was wondering how someone that used this template to create his own project can benefit from the development of this template in the long run. For example, given that this template will handle most of the devops functionalities I would like to update/rebase my existing project one year after its creation, taking advantage of all the nifty updates that have been introduced since then. So, one solution I came up with is that this could be a submodule on the actual repository that can be updated on demand. However, I am not sure if this can work with the CI that needs a specific folder structure. Another approach would be to package the required files and modify them accordingly using a package manager like vcpkg or conan that can also leverage the python utils. I would prefer the first approach since there is no standardized package management in cpp. Any thoughts on that?