very cool that they did support for mi 8 pro. this will make your firmware practically the only one that users of this gadget will install. now on the firmware market for mi 8 pro in Russia there is only miui firmware and the like. but the problem is that the mi 8 pro does not have normal twrp support. I've been looking for a working twrp on the forums for over a week. I like the firmware, even in spite of some lags, which are rare. mainly related to stability. If I were you, I would have embedded gcam into the firmware, since this is the only normal camera that can give good work to photo modules. in general you are great, keep it up, if the updates are stable, you can make a paid upgrade. even $ 1-2 will help you support the project. the main thing is that there is always a free version to try !!
You can use the twrp made by wzsx150. Also you can download the Gcam from the Gcam channel if you want to install the Gcam. And the Q5 has released on last month