The rom has the kangeroo kernel from lostdeveloper built in with kexec-hardboot patch and f2fs patch already applied.
To get this working I had to revert back to TWRP 18.104.22.168 factory reset through wipe menu then format the system partition. then i installed the rom, gapps, supersu, and busybox through install zip menu, rebooted, then installed multirom app through google play. and rebooted.
everything seems to work fine, hope this helps anyone that needs it.
p.s. i would love to get the kernel from this rom with the patches applied as a seperate zip to try on other roms but the only thread i can find for the rom on xda is this one but hasnt been updated for a while and dosent have latest builds in zip format.