Similarly to my workshop I decided to built a dedicated distribution panel for my data center installation. Once I redo the electrical installation in the house in the coming year, this panel may end up being partially redundant (i.e. surge protectors and RCD) but I guess redundancy is better anyhow, rather have two breakers trip at the same time than one failing to do so.
1, 2) Main RCD 25A 30mA A Type 3) Main circuit breaker 16A B type, 4,5) Branch breaker 10A B type, 6,7,8) Branch breaker 6A B type, 9) Single phase meter, 11,12) Surge protectors
Internally I cabled everything that conducts the full current capacity with 2.5mm2 wires.