First off, this is excellent! I was working on something similar, but not nearly as scaled and not nearly as refined just to get backups of our devices. Decided after randomly stumbling on this to drop mine and pick up yours. I do have a couple recommendations as this appears to be use of managing a “mikrotik network” as opposed to how I planned on using it, as an MSP.
Bulk imports of devices (we have over 200 external mikrotiks, and obviously not in the same subnets). It would be nice to just say, “no, there is a mikrotik at this specific IP” and it to show on dashboard, but red or grey if no initial contact is created.
Add firmware updates to Task planner so they can be scheduled after hours. ← Scratch this one if you are leaving it pro. I agree with you guys making money on your work.
I hope your wedding/honeymoon went great and look forward to seeing updates!