Save and restore route history

[AntonLT]

I have a case where I need to "come back" to routes I had last time I opened the app.
Here is the case:
I have the route "stack":
main_route -> home_route -> details_route
I kill the app. Open it again. After a successful biometric check, I want to return to the route stack.

I'm thinking about storing stackData as json locally, then read it, decode and push as new Routes. but I haven't found a way to do so yet.