Go for it! I made my own cookiecutter template for Django: https://github.com/clintonb/cookiecutter-django. My main goal was to get projects running faster. Updates every 6-12 months are fine. Alternatively, update when you are ready to start the next project, or shortly after you’ve made significant changes to the most recent project.
For example, my latest project has a React frontend. I’ll incorporate that back into my cookiecutter after I’ve worked out various issues.
For example, my latest project has a React frontend. I’ll incorporate that back into my cookiecutter after I’ve worked out various issues.