First test if someone wants to try my NES dat for emulationstation (usable on PC), retropie, recalbox:
Advantage: no need to scan games
Inconvenience: GoodNES 3.23 roms obligatory!
Unzip in your usual installation:
Then you have to change the NES roms directory in es_systems.cfg to the correct directory, and that's it.
PS: Of course not to use the scraper function.
PS2: if anyone want to contact me about retropie/recalbox dats (email@example.com)