I am unsure if anybody is interested, but I don’t have the computing power on my T420 or experience to try this, but someone has created a UBPorts halium 9 GSI. It’s in very early stages but the instructions are as follows https://build.lolinet.com/file/halium/GSI/ubports_GSI_installer_v3.zip
- Install treble compatible android 9 rom
- FORMAT data in twrp
- Flash halium-boot.img of your device
- Flash GSI zip https://build.lolinet.com/file/halium/GSI/ubports_GSI_installer_v3.zip
if there’s no halium-boot for your device, build it without android environment!
- Get kernel source
- Patch defconfig using this script: https://github.com/erfanoabdi/halium-boot/blob/master/check-kernel-config
- Build kernel and flash it (using anykernel or any other way)
- Flash https://build.lolinet.com/file/halium/GSI/tools/halium-ramdisk.zip
you can find more information by joining the creators telegram here: https://t.me/ErfanGSI
and the halium telegram here: https://t.me/halium