I can certainly create an image, this indeed would be the nicest for end users. Will be around 2.6 GB when installed.
I will also post instructions to setup the system from scratch, for modders (and paranoids).
A button for the Scheduler page in the Advanced page is an option, to appear only for remote clients as the page doesn’t work well on the hestiapi itself (too large and requires scrolling).
edit: see IOThermostat image