Bryan Helmkamp of weplay has shared his team's Git deployment workflow on his blog, which includes various Rake tasks for managing Git branches and deployments. The workflow is designed to streamline the process of updating staging and production branches by using specific tasks to handle operations such as fetching updates, checking out branches, resetting branches to specific versions, and pushing changes to the repository. It also incorporates tasks for showing differences between branches and creating new branches for tweaks or bug fixes, all while ensuring a clean working directory before executing these operations. The workflow is complemented by tasks for tagging and deploying updates to the staging environment, ultimately aiming to facilitate efficient and organized code deployment.