According to Darkglass :
The Hyper Luminal Compressor features the first hybrid design in a compressor pedal: an analog VCA controlled by a digital side-chain allowed us to capture and include the characters of some of the most legendary compressors in history while keeping the signal path completely analog.
Video link : https://youtu.be/0wxJ-GgCsqU
More info : https://www.darkglass.com/creations/hyper-luminal/