How to properly test apps or games

Hello everyone. For this topic I don’t know the correct category and apparently there is no “portmaster” category or tag. So…

How do you develop your apps or games for anbernic/muos?

Following this https://portmaster.games/porting.html#how-do-we-compile-our-games-for-portmaster

I kill the frontend.sh, with killall -q frontend.sh muxlaunch. Then I execute the game, with raylib compiled with DRM and the following appears


WARNING: DISPLAY: No graphic card set, trying platform-gpu-card 
WARNING: DISPLAY: Failed to open platform-gpu-card, trying card1 
WARNING: DISPLAY: Failed to open graphic card1, trying card0 
WARNING: DISPLAY: Failed to open graphic card0, trying card2 
WARNING: DISPLAY: Failed to open graphic card 
WARNING: SYSTEM: Failed to initialize platform 
INFO: TIMER: Target time per frame: 16.667 milliseconds 
INFO: FILEIO: \[assets/main-graphic.png\] File loaded successfully 
INFO: IMAGE: Data loaded successfully (512x512 | GRAY_ALPHA | 1 mipmaps) 
WARNING: GL: GPU is not ready to load data, trying to load before InitWindow()?

And exits. So I don’t know how to proceed here without running in circles.

My MUOS version is Jacaranda. Please a help with this.