Is there a way to share the encryption key between computers (manually set the key)? See my aside @ https://news.ycombinator.com/item?id=15075063 https://news.y

Is there a way to share the encryption key between computers (manually set the key)? See my aside @ https://news.ycombinator.com/item?id=15075063 https://news.ycombinator.com/item?id=15075063 for why