I learned now about the export/import tool, but this wouldn't help me anyway since my steamdeck couldn't boot neither of the 2 boot environments.
After reinstalling the OS and emudeck I noticed some systems still had saves but others didn't.
I dig into it and found that the save folders for thoses systems were just links to the home partition. Since I lost my OS and had to reinstall I also lost the data on my home, including those saves.
I would expect the saves to be all in the Emulation/saves folder on my SD card so I could easily reinstall the whole system without loosing them.
It seems the easiest way out is to create symlinks from the SD card to the home partition, not the other way around. First one needs to move the folders to the ad card.
The emulators I use and don't save directly to the SD card are:
retroarch
riujinx
citra
Ppsspp
dolphin
When I find motivation I will write a shell script to make the links for me and move things around.
The export/import tool wouldn't even be needed if the symlinks were correctly created, with that said, probably the emudeck team found problems with that approach (the folders must be moved and links created after the emulator is installed), but I don't see how that approach wouldn't work on Linux.
Thanks emudeck team for automating playing retro games on my steamdeck, your work is really appreciated.
Would be nice to have all the saves stored on my SD card.
matrix.org