SUCCESS!! X280 Sonoma Quad Boot Intel-9260NGW

[chompnbits]

Thank you for your work!

Lenovo X280 (20KF)
1TB TimeTec nvme
Release 1.3.0
Sonoma boots quickly, runs snappy fast. Fan is cool and quiet.
Intel 9260 is working great WITHOUT heliport workaround.

Generated SMBIOS and added native MAC (ROM).

Deleted following kexts:
AirportItlwm-BigSur.kext
AirportItlwm-Monterey.kext
AirportItlwm-Ventura.kext
IntelBluetoothInjector.kext
VoodooI2C.kext
VoodooI2CHID.kext

Added:
Airportitlwm.kext (Alpha 2.3.0-Sonoma)

Refreshed Config.plist in ProperTree

Booting Linux Mint 21, Ghost Spectre 11, and Batocera using Refind.
Chainload Opencore from Refind to boot Sonoma.
Replaced some Opencore files with latest versions.

New install so a lot is untested.
Card reader, graphics, wifi, trackpad, restart/shutdown, and wake from sleep, brightness/volume keys = working.
Writing this from brave on Thinkpad Sonoma.

Thumbs up!