Due to unrelated reasons my homescreen may reset sometimes. I do not seek help with that, and in fact I am already sure it cannot be fixed right now. However it is annoying to put everything back all the time.
So here's my idea: to work around this, I need to make a backup of the layout file whenever I change it, and when it resets, restore the backup. This way, I won't have to put everything back myself, just restore the file, restart the launcher, and everything is back to normal.
However, I cannot find this file. Where is it?