It fits when
- You have a sustainability disclosure (SECR, CSRD, customer audit) and your IT footprint is the part you can't defend with vendor averages.
- You operate a mixed fleet — Windows, macOS, Linux, Proxmox, pfSense — and need numbers across all of it, not just one platform.
- You want a baseline you can keep running, not a one-off carbon report that ages out the day you publish it.