dhcrelay and kea in parallel for different interfaces

[opns_neuling]

Hello everyone,
My goal is to migrate step by step or interface by interface from a dhcp server to opnsense kea.

Can anyone confirm that dhcrelay and kea can run in parallel?
So far I have worked with dhcrelay (HA Mode) and forwarded all DHCP requests from the various interfaces (VLANs) to an external DHCP server (Linux).

Now I want to move one subnet at a time to "opnsense kea", i.e. turn on kea in opnsense and configure the corresponding subnet etc. for one interface, while the others continue to be passed on via dhcrelay...
Should I pay attention to anything special?

Thanks in advance,