We have provided all the required files that you need to download. If you have installed any custom ROM before then you will have no issue flashing the ROM as the process is exactly the same. But before proceeding to the installation let me clear that this build is in the very early stage which means there will be bugs and many functions may not work properly. So we do recommend not to flash the ROM on your primary device.
Another reason why people seek custom ROMs is because of the extra features they offer. They also reduce bloatware that comes as a part of many manufacturer skins.
The ROM come in Oppo Flash package You need a Authorized Oppo ID to Flash it by using the MSM Download tools Which is Included along with the Firmware. Download the QcomDloader Tool and USB Drivers on your PC. Follow the below Guide to install the firmware using the QcomDloader Tool. Official Stock Firmware Flash File Now available for the Realme X3 & You can Download it From below. The Pixel Experience OS includes all of the functions and programs that come standard with the Google Pixel smartphone. With this Custom ROM, you can now enjoy the true Pixel stock ROM (firmware) Smartphone.
If you’re only building for one device, 25GB-50GB is fine. If you plan to build for several devices that do not share the same kernel source, aim for 75GB-100GB.