Can I flash this , just need fraction of assurance from your side . My device is Realme 7 ( RMX2151 ) , Support A/B system and have a vendor from Android 10. I'm asking because your gsi is Android 9 and I'm fade up with this RealmeUI .
Need help somewhat new to this gsi world , previously used specific resurrection remix ROM on my previous redmi note 3 phone.
I compiled the GSI overnight, its aosp_arm64_a Legacy GSI, because the ones I keep downloading are all August security patch and I wanted it a little more up to date. I got the source directly from google and built it myself. AB is now uploaded as aosp_arm64_ab. A only is also up as aosp_arm64_a-aosp. I ran it on my One Plus 5, NFC was buggy but the camera, ril, Bluetooth, wifi, and everything I tried out worked. this is vanilla, so its bare bones. no apps besides the basics, no mods or any customizing. As this is a GSI it should be useable on many devices, I can only help you with the devices that I own, pixel XL and one plus 5. If you have a device other then that, you will have to find help from someone knowledgeable about that device. I have had success using twrp and fastboot to flash the system image. I was told doing it via fastboot is the best, so you can disable verified boot, then flash, then format all in one shot. My device did not require me to disable the verify boot. From my end it was literally as simple as 3 commands via fastboot and then restart the device and I was in. I flashed a 50mb gapps package from xda here, and magisk. took some photos, connected my Bluetooth speaker, made a call. sent some texts, installed a few apps. I will be staying on stock. But only because my device has stock pie, and the theming from one plus far trumps google.
aosp_arm_a-userdebug and aosp_arm_ab-userdebug added https://mega.nz/#F!Xh4g2KSB!EJIGQtvLFKzHzqKXmZI7tg
It's very fast. install and boot was very fast. but I just discovered my home button does not work. however I don't assume that would be a difficult fix. the back and pages button are working. its very bare tho, you need to install everything you want manually. Which I prefer, it gives me more control over my phone I find. Hydrogen works ok too, it just requires a bit of work to get play store going and remove all the bloatware. GSI camera worked fine from boot.