i just discovered these and thought they were very helpful and inspiring. not just for serge, but modular and just synthesis or sound design in general. he does some things based on roland kayn’s cybernetics approach. theres a whole series on his own channel from the video below this one
his workshop lps were my favorite back when i listened to a lot of house/techno *(edit: i confused gunnar haslam with kassem mosse, but his l.i.e.s. release “bera range” was p good), i think it’s so cool when we are able to get a glimpse of the ideas and processes that some of these lesser known artists use in their studios