If you wish to attempt building Android 10 for RK3188 yourself (academic only), you would need to:
The RK3188 is a popular chipset used in many Android devices, and there are several custom ROMs available for it. However, I need to clarify that Android 10 is a relatively modern operating system, and not all devices with the RK3188 chipset may be compatible with it. rk3188 android 10 free
: A specialized forum for Android TV boxes where developers often post custom "cooked" ROMs for older Rockchip hardware. GitHub Projects RK3188 — Android 10 (Free) — Clean, Fast,