Dawn is likely overkill for the small/home office scenario you describe. 802.11r OpenWRT configuration with maybe the addition of FT802.11k Neighbour Report distributor daemon will do what you really need.
However, see this post for details on an incomplete Linux core mac80211 patch (aka bug) that was implemented between 19.07 and 22.03. This has impacted Fast Transition FT which used to work well for me, but hasn't since.
@fodiator has a patch that he is working to develop further to the point where it will be accepted by OpenWRT and hopefully Linux kernel itself. Can't wait.