Does the mod loader just not work on firmware versions newer than 20.1.1? I'm on a hacked oled switch with my emummc on 20.5.0 and XCX (v1.0.2) crashes immediately after trying to start it with just the mod loader installed. I've tried version 1.1.7, 1.2.0, and 1.2.1.
Edit: Works perfectly fine...