A custom ROM (Nemesis) based on Samsung Galaxy Note 8 Firmware has made its way for the Galaxy S8 and S8 Plus. The ROM features all the goodies that comes with the Galaxy Note 8. You will also get the Galaxy Note 8’s new Samsung experience, also the new UI for a lot of applications.
The Nemesis ROM is completely debloated and deknoxed. It comes with Magisk installed in it. In order to Install this ROM on your Galaxy S8 and S8 Plus, You'll need to have the TWRP recovery installed.
You can download the Note 8 Port (Nemesis) Custom ROM from the link below. Flash the ROM via TWRP to Install it on your S8 or S8 Plus.