Rugess Nome (Earth-2042)

"To we who dwell in the Force, normal life is little more than pretense. Our only actions of significance are those we undertake in service to the dark side."

- Darth Tenebrous, to his apprentice Darth Plagueis

Darth Tenebrous, born as Rugess Nome, was a male Force-sensitive cyborg Bith Dark Lord of the Sith of the lineage of Darth Bane. In his public persona as Nome, he was a legendary artisanal starship designer with a galaxy-spanning reputation; as the Sith Lord Darth Tenebrous, he was a scientific mastermind possessed of a calculating intellect with an obsession on shaping the future, and was the master of Darth Plagueis.

Source

 * https://starwars.fandom.com/wiki/Darth_Tenebrous