Can you say more about any steps you take to secure your colocated hardware, including prevention, detection, and remediation? Do you use cameras, special server chassis, etc.? (No details of course: learning what you think is necessary, based on your experience as operators, is useful).
Relatedly, how much do you worry about supply chain attacks and related issues? Would you use Supermicro servers? Juniper switches? Do you worry about disabling ME, etc.?