$ git remote add upstream https://github.com/huggingface/diffusers.git Create a new branch to hold your development changes:   Copied $ git checkout -b a-descriptive-name-for-my-changes Do not work on the main branch. Set up a development environment by running the following command in a virtual environment:   Copied $ pip install -e ".[dev]" If you have already cloned the repo, you might need to git pull to get the most recent changes in the