How to add new display .hpp file in simulator & simulate those

I installed the lvgl simulator as per setups provided on github(GitHub - lvgl/lv_platformio: PlatformIO project example for LVGL). I tried emulator_64bits it worked fine . Now I would like to add my own board , I need help/suggestions/guide how to add .hpp I did follow steps mentioned on github but I was not able to find what was suppose to be added in hpp (hal/esp32/display) and what all configurations must be mentioned. I did go through the other sample file (LGFX_ELECROW_3_5.hpp) but did find it help as I couldn’t proper steps or config was suppose to be added in hpp.
How do I simulate it for my board.
Framework : Arduino
Hardware : ESP32 do it dev kit V1 & GC9A01 1.28" round display.

Any suggestions/tip/help is valuable .
Thank you