Port
I found this guide https://github.com/vacuumbeef/droidian-adaptation-vayu/wiki and https://github.com/droidian-vayu/device-page/wiki. they say to flash the base rootfs api30 droidian image and then an adaptation package and it should work!
And this https://github.com/techtino/Droidian-Install-Guide-OP6-6T-
So they are based on having android installed, flash the roofs of droidian, change the boot image to a halium based one and boot.
https://otafsg1.h2os.com/patch/amazone2/GLO/OnePlus6Oxygen/OnePlus6Oxygen_22.O.34_GLO_034_1909112343/OnePlus6Oxygen_22_OTA_034_all_1909112343_dd26.zip https://eu.dl.twrp.me/enchilada/twrp-3.7.0_11-0-enchilada.img https://github.com/techtino/Droidian-Install-Guide-OP6-6T-/blob/main/halium-boot.img https://github.com/droidian-images/droidian/releases/download/droidian%2F101.20250906/droidian-devtools-api28-arm64_20250907.zip
fastboot boot twrp-3.2.1-0-enchilada.img adb sideload OnePlus6Oxygen_22_OTA_034_all_1909112343_dd26.zip
start android and make sure it works.
fastboot flash boot_a halium-boot.img fastboot flash boot_b halium-boot.img fastboot boot twrp-3.3.1-2-enchilada.img adb sideload droidian-OFFICIAL-phosh-phone-rootfs-api28-arm64-101.20250906_20250907.zip adb sideload droidian-devtools-arm64_[date].zip
fastboot reboot
twrp-3.2.1-0-enchilada.img with android 9 gives a qualcom crash dump I copyed the zips to the phone. they do not install
fastboot flash userdata ~/Downloads/enchilada/droidian/droidian-OFFICIAL-phosh-phone-rootfs-api28-arm64-101.20250906_20250907/data/rootfs.img
fastboot boot ~/Downloads/enchilada/twrp/twrp-3.3.1-2-enchilada.img
maybe you have to remove checksum verification when flashing the zip from twrp?? No
adb sideload ~/Downloads/enchilada/droidian/droidian-devtools-api28-arm64_20250907.zip
nope, does not work. I rebooted to android after all that! A/B partitions...