Your email templates now live in a Git repository you can clone. Edit them in your own editor or in the dashboard, then publish the exact commit you tested. What sends is what you reviewed, and rolling back needs no deploy.
samva templates init --name "Order shipped"
samva templates dev
git add . && git commit -m "Update copy" && git push origin main
samva templates publish
Saving in the dashboard commits to the same history. If you and the dashboard changed the same file, the editor shows the conflict so you can pick what to keep.
Start with Email templates.