Use emulator added independently

[eje211]

I was using RetroPi on a Raspberry Pi 4 and I loved it, but then I decided to upgrade to an actual tiny PC running Debian. (I don't need Ubuntu for this.) I had to do a few tricks to get the PS2 emulator to work. But I had no luck with Dolphin. I tried pretty much everything. Finally, I noticed I could install Dolphin with a snap. I tried that and it worked!

But Emulation Station does not know about the snap. And when it tries to install Dolphin, it tries to compile it, and that does not work. I'm not sure why. I looked at the compile errors, and after a while I could not fix them.

So is there a way to link my independently installed snap to Emulation Station? If so how? This page explains how to add a new system, but I just need to insert my own executable in an existing system's configuration. How would that work?

The problem is less editing an existing configuration to point it to my own executable. If I find the configuration file (even though I don't see its location in the documentation), I should be able to do that. The issue is to get the consoles (the Wii and Game Cube) set up even though, according to the system, the installation of the emulator failed.

I am running Buckeye on a 4-core PC with an Intel GPU. But I don't think this information is related to the problem.

Thanks!

[sleve_mcdichael]

@eje211 https://retropie.org.uk/docs/Add-a-New-System-in-EmulationStation/#step-31-launch-roms-with-the-runcommand-script

You need to edit the launch command in your emulators.cfg at /opt/retropie/configs/gc/emulators.cfg and/or /opt/retropie/configs/wii/emulators.cfg. Replace the command (or add a new one) to use your installed binary instead of /opt/retropie/emulators/dolphin/bin/dolphin-emu