[alwayslikethis]

This won't really help. The point of an SRS is the scheduling information. Even then, you may not have a compatible system to make use of the scheduling info. The switching cost is immense, and I would personally need an ironclad guarantee that the tool cannot be taken from me, such as by having the source code. Never going to be using a non-self hosted SaaS for this, sorry. There is a lot to dislike about Anki but the good thing is it will be only taken from my cold dead hands.