Use the Eurorack module Stages from Mutable Instruments as the only sound source!
In this video we use three segments of Stages. Two as oscillators and one as a simple decay envelope. Stages is then sent to a two channel VCA (μVCA II from Intelligel). I also use a reverb (Desmodus Versio from Noise Engineering) to make the sound less dry.
More info about Stages from Mutable Instruments here:
https://mutableinstruments.net
More info about μVCA II from Intelligel here:
https://intellijel.com
More info about the reverb module Desmodus Versio at Noise Engineering.
https://noiseengineering.us
More info about Sonic Gap at
https://www.sonicgap.com