Many thanks! Will check your suggestions!
I need to plan before because I have 2x RT-AC68U in mesh, with a lot of rules and etc.
If possible, regarding the question for "1) FreshTomato firmware, with GUI; 2) Asuswrt-Merlin firmware, with custom script."
-I have 2 routers in imesh connected by cable
-Usually around 40 devices online between them (wireless and lan both sides) - I reboot it maybe 6 to 6months

-Use the manual IP assigment (can't understand the 64 limit)
-Use DDNS from asus
-Some port forwarding
-VPN as server and as client
-Integration with homeassistant
Can I restore my current settings to those 2 firmware options?
For those utilies I mentioned, and adding the vlan support on the LAN side, and creation of at least 1 more SSID (2,4 or 5)....
Which would you recommend the most?
@Tech9 @bennor