My French is very rusty, but that looks like an interesting introduction to surround sound with VCV Rack.
I think it would be important to let the reader know that the channel allocation can vary depending on the target system.
For example, sometimes I target my Dolby 7.1 system which is eight channels, usually arranged as L R C LFE LS RS SL SR. Multi-channel FLAC files often follow this layout.
If you want to extend the number of channels in preparation for conversion to Dolby Atmos, you’ll need at least a 7.1.4 Atmos bed.
If you’re targeting one of the binaural products, e.g. Binauralizer Studio (VST), the channel arrangement can be different again