I put up a video of me using the RetroFE frontend with RetroArch: https://www.youtube.com/watch?v=y4Gk_XwGMK4
I showed off a few PSX and PCE games where I used the initial and last scanline core options to cut off the black bars at the top and bottom. I had to set a custom aspect ratio for each game I did that with to keep correct geometry. Per game overrides are handy for that stuff!
I figured out a trick accidentally too; in the override file you can set the override file as your core options file. RA will then write core options to the bottom of it. That saved me making a bunch of per game core options files.
I showed off a few PSX and PCE games where I used the initial and last scanline core options to cut off the black bars at the top and bottom. I had to set a custom aspect ratio for each game I did that with to keep correct geometry. Per game overrides are handy for that stuff!
I figured out a trick accidentally too; in the override file you can set the override file as your core options file. RA will then write core options to the bottom of it. That saved me making a bunch of per game core options files.