https://letters.byburk.net/p/how-to-back-up-your-mediumLetters by Burken2026-07-30T13:41:05+00:00How to Really Back Up Your Medium (Posts, Images, and Subscribers)https://letters.byburk.net/p/how-to-back-up-your-substackLetters by Burken2026-07-30T07:24:59+00:00How to Really Back Up Your Substack (Posts, Subscribers, and URLs)