As https://packaging.pypa.io/en/latest/development/release-process/ points out, it's already mostly automated. I think if we added a PyPI token and then used https://github.blog/changelog/2020-07-06-github-actions-manual-triggers-with-workflow_dispatch/ with the version number to release as the sole input we can make it so we can cut a release entirely in the browser.