Jack Wallis, known as Decka, was raised in Bristol and moved to Berlin in 2017. His early productions drew from dubstep, punk, and UK techno before settling into a stripped-down techno sound marked by hypnotic polyrhythmic patterns and industrial influence. He co-founded the Unterwegs imprint with The Lady Machine and has released on labels including SPE:C, KEY Vinyl, AMTK+, Token, and Tar Hallow, with his debut solo LP Exit arriving in 2024. Beyond production, he also co-runs Frameworks with artist Roseen, and maintains a vinyl-only approach to DJing that reflects his devotion to analog methods in the studio.