Glide now has a Row ID column!
If the data in your app changes regularly – i.e. rows move position, get deleted, added, edited – then it’s good practice to use Unique Keys. (read more about this topic here)
Now you can simply add the Row ID column in the data editor and Glide will take care of this for you! The Row ID column will add unique keys to each of your rows and you can then use that column in relations. Read more here: https://docs.glideapps.com/all/reference/data-editor/computed-columns/row-ids