How to create a simple timer scene in openhab?

[hafniumzinc (T)]

@rpwong

So from an efficiency standpoint I prefer to automate at the device level, but from a maintenance standpoint I sometimes think it’s better to keep the automation all in openHAB.

I can somewhat agree with this. I actually have something in between setup, where openHAB configures and arms a bunch of timers on Tasmota switches when the house becomes empty, and then disarms them when the house is occupied again. This way, openHAB does the initial work, but Tasmota is responsible for the continuous automation whilst the house is empty (and therefore no-one is around if openHAB keels over).