I started using Anki for subs2srs. This creates some massive media syncs. If there’s an error it can be tricky to fix, especially if using multiple devices.
I created a second account for testing. However, signing in and out is a PITA and the syncing takes far too long for that to be workable.
IMHO everyone needs 2 copies of Anki on the desktop. One for regular use and another for testing.
Sorry, forgot to mention it’s Mac OSX!