Recovery of states e.g. after reboot?

[RaW79]

Hi
i´m working on implementation of openHASP panel only by Mqtt because I´m not using HA.

So I identified that it is critical for example to reboot your panel and then the states (e.g. On/Off Switch) used on the panel are not recovered. Means the last published state e.g. is true but after reboot of the panel the switch on the panel shows false.

So have to implement a detecting when the panel is alive again (maybe also after every mqtt reconnect) that all used states are published with current values (lastknown) from the automation system to the panel. Sth. like a synchronization process.

Can you recommend how this can be done best?
The LWT status online/Offline seems to be bit a slow and takes some time after reboot to be used as trigger.

Can you recommend a procedure for this?
Thx!