Feature request: specify DHCP lease storage

We’d love to use MTik hardware as DHCP server for larger deployments (about 20…30 /16 subnets, all DHCP).
But I’m afraid to do so because of flash write cycles.
It’ll be just fantastic if we could choose the place the leases are saved to - like an SD card, M2 drive, USB…
We’re currently running a vm but on our bigger deployments the servers come on site later.

Could this be possible?
Any opinions on this?

Thanks,
-Chris