Why should I use a GSI ? Mojito already have custom ROMs ¯\_(ツ)_/¯​

Yes. But this thread exists due to the following reasons:

• You're tired of same 3rd party custom roms based on @ZIDAN44's trees​
• You don't want to hop between roms regularly​
• You have issues daily driving custom roms​
• You just need a stable build to daily drive with monthly regular OTA updates​
• You don't want to depend on & trust buildbot roms lurking in telegram (especially when there are fastboot erase abl scams)​

AOSP GSI project is being alive for almost many years now. And it'll still continue it's regular updates for AOSP's existence & entirety.
I've been daily driving his project on this device for almost an year. Apart from customizations offered by standard AOSP forks, phhusson's GSI provides pure android experience. Everyone claim GSIs are buggy & not daily drivable, which is a complete false claim.
This is a step by step guide to daily drive AOSP GSI without any bugs & other issues.

It's a one time procedure since you'll be greeted with monthly OTA updates (thanks to @phhusson).

Prerequisites :
USB Drivers (guide to install)
Platform Tools (guide to setup)
Stock ROM (fastboot)
MicroG (for vanilla)
vbmeta.img (from google)
TWRP (thanks to @Nebrassy)
Magisk (thanks to @topjohnwu)
Redfin Props (thanks to @t3sl4)
SafetyNet Fix (thanks to @kdrag0n)
Neternels (thanks to @cyberknight777)
Overlay (patches for mojito specific hardware)
AOSP GSI
Recommended variants :
system-squeak-arm64-ab-vndklite-vanilla-secure.img.xz for vanilla/microg
system-squeak-arm64-ab-vndklite-gapps-secure.img.xz for google play services
It's better to avoid pre-release tags.

INSTALLATION​

NOTE: I'm assuming you've already unlocked bootloader, backed up your data & know all the technical consequences of flashing & modding.

• Download / extract all prerequisites in one place.​
• From stock firmware, edit flash_all_except_data_storage.bat/sh & modify last line to fastboot reboot fastboot​
• Force reboot handset to fastboot mode (vol_down+power), connect to PC & execute above edited script to flash the stock. Then from terminal/cmd, execute:​
• fastboot erase userdata​
• fastboot flash vbmeta vbmeta.img​
• fastboot flash system <gsi-file.img> (ignore INVALID SPARSE warning)​
• fastboot reboot & make sure it boots up. Power off & return to fastboot again.​
• fastboot boot <twrp-file.img>, head to Advanced & run flash current TWRP to make recovery persistent across reboots.​
• Flash Magisk (for safetynet fixes) & Neternels (for performance), either by copying them into an SD card, or through adb sideload <zip-file>, caz internal storage decryption from recovery has been stopped working since Android 12.​

BUG: Don't touch the screen while booting, else it'll make the display unresponsive, leading you to force reboot. A minor bug, but can be ignored.
BUG_2: On gapps variant, don't set password on setup wizard, else it'll crash fingerprint settings later.

POST INSTALL CONFIGURATION​

• Setup Magisk from app-drawer. Follow in-app prompts & reboots.​
• From magisk settings, hide the Magisk app, enable Zygisk & Enforce Denylist.​
• Load Redfin Props & SafetyNet Fix magisk modules to pass CTS (Compatibility Test Suite). NOTE: To update kernel, you gotta disable Redfin-Props module first, reboot & flash kernel, then re-enable it later.​
• microG module if you chose vanilla variant (& yes, microG has working safetynet now. You can run any banking app except gpay)​
• Enable the following Settings > Phh Treble Settings:​
• Qualcomm features / Use alternate audio policy.​
• Misc features / Disable audio effects & Force-disable A2DP offload.​
• IMS features / Request IMS network & Force the presense of 4G calling. Also Install IMS Apk for Qualcomm vendor from notification panel.​

Get any root explorer such as Mixplorer & extract my overlay into /product/overlay/treble-overlay-xiaomi-redminote10.apk with permissions 644/rw-r-r. (NOTE: If there's no space available warning, remove these two /system_ext/apex/{com.android.vndk.v28,com.android.vndk.v29}, reboot & try again).

Currently, the overlay is under PR, so you had to manually copy by yourself for now. This is no longer needed after PR has been merged into the subsequent GSI updates. Overlay is crucial as it fixes the following :

• Brightness stack
• CPU core frequencies
• Missing battery usage stats
• Missing night light toggle
• Ambient light & Doze

EXTRAS​

My Recommendations for great experience:

• Lawnchair / Quickswitch for launcher customization with gesture navigation support.​
• Lineage Dialer for built-in call recording (replace it with /product/priv-app/Dialer/Dialer.apk)​
• BSGCam for google camera's post processing with this config.​
• SmartPack Kernel Manager to underclock, flash kernels & monitor battery.​
• Improve performance with SmartPack / Tools / Custom Controls / Create "Generic" / > /sys/module/kprofiles/parameters/kp_mode > 1 (Efficient), 2 (Balanced) or 3 (Performance).​
• Aurora Store / Droid for microg users. Also, enable Google device registration, Cloud Messaging & Google Safetynet.​
• Apple Wi-Fi & GSM-LS for working google maps on microg. Turn them on from microg / Location modules.​
• Bromite (arm64_SystemWebView.apk) for uptodate android webview (Developer options / Webview Implementation).​
• Migrate to backup & restore user apps & data, incase you lose your setup.​

NOTE: Updates can be received through Settings > System > Updater every month as an OTA update.

Thanks for reading all the way through here. Here's my usage stats on 20% brightness.

Samir2298 said:

Followed exactly as in OP.

I did remove some apps tho from product app/priavpp and system app/privapp, so maybe that caused an issue? Is there anything related to fingerprint in those folders?

If you want to gain more space (≈ 200mb) in system you can delete 2 folders safely without problems :
/system/system_ext/apex/com.android.vndk.v28/
and
/system/system_ext/apex/com.android.vndk.v29/
Already did it in DSSI builds without issues.

Hami_Do said:

I have been using GSIs on my old Huawei P10 lite for almost 3 years, and it was a very good experience.
Now with mojito I find myself lazy always using Roms -_- '
Thanks for the guide!

The only official dev for this device, who's actually from core development of a reputed project (PE), is Zid. There aren't any, as I do not find others to be helping from core (except couple of kernel devs).

ROMs have no complete guarantees for future updates. Although you can use other project GSIs such as crD by Nazim, LOS by Andy, phhusson's the one who's consistently providing regular monthly updates with built-in OTA.

Furkantaner said:

Can I install MIUI gsi roms like this?

You can install any AOSP GSIs with this guide. Not sure of other skins, as they're proprietary.
And why would you need MIUI GSI? Mojito stock "is" MIUI.

AlsoKouki said:

tried move the firmware to plarform-tools/ after i execute it this happen

This is redmi Note 10 forum mate. So I had stock ROM link of mojito/sunny. Your device (3rd screenshot) closely states it's Rainbow (Wiko).

Although this is a GSI guide, I suggest you to flash your own device's stock rom.
Still, it won't be enough caz I don't have overlay patch of your device.