Historically it's always been the case that you would use a pickle file to store a trained scikit-learn model on disk for deployment. Pickles make sense because these are so flexible, but they do carry a security concern. Adrin has been working on a remedy called skops, which is the main topic of this podcast.
To learn more about skops, make sure to check the documentation: https://skops.readthedocs.io/en/stable/