Odin won't flash custom roms, however you could try booting into twrp, wipe data, plug phone into computer, go to twrp main screen and mount - mount usb storage. You should be able to go back to your computer and drag rom / gapps, to your android phone.
I installed on a clean wipe, flashed ROM then gapps, make sure you select do not install TWRP at the end, wipe Dalvik and it took my phone close to 10 mins for first boot.
Also, set up your phone before you install magisk
Getting random reboots on Canadian w8 variant. Much better battery optimization since last time I tried this ROM. Thank you for your work, beautiful ROM overall, camera lags a little before taking photo but all around pretty decent.
Working great on Canadian variant. Only issue I'm having is magisk, it likes to continue pop up saying application was granted supersuser rights but doesn't appear to let it. Also, camera crashes when using flash. Thank you,