Sources

Device specific:

Device Tree: https://github.com/sharanpai3/android_device_realme_RM6785

Vendor Tree: https://github.com/realme-mt6785-devs/proprietary_vendor_realme
Kernel Tree: https://github.com/realme-mt6785-devs/android_kernel_realme_mt6785
realmeDirac: https://github.com/psionicprjkt/psionic-packages_apps_RealmeDirac

Some extra repos that I might have referred to:
https://github.com/psionicprjkt/psionic-vendor_extra
https://github.com/psionicprjkt/psionic-device_realme_RM6785
https://github.com/realme-mt6785-devs/android_frameworks_opt_net_ims
https://github.com/realme-mt6785-devs/android_frameworks_opt_telephony

https://github.com/realme-mt6785-devs/android_frameworks_av
https://github.com/realme-mt6785-devs/android_packages_modules_Wifi

Actual ROM Source:

https://github.com/Octavi-OS